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2224221444 = 22346864881
BaseRepresentation
bin1000010010010010…
…1110110100000100
312202000021011020000
42010210232310010
514023400041234
61004412441300
7106055366424
oct20444566404
95660234200
102224221444
11a41573545
12520a79230
13295a62383
14171584484
15d0403899
hex8492ed04

2224221444 has 30 divisors (see below), whose sum is σ = 5814555054. Its totient is φ = 741407040.

The previous prime is 2224221437. The next prime is 2224221521. The reversal of 2224221444 is 4441224222.

2224221444 is a `hidden beast` number, since 222 + 422 + 14 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2148322500 + 75898944 = 46350^2 + 8712^2 .

It is a super-2 number, since 2×22242214442 = 9894322063898890272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3432117 + ... + 3432764.

Almost surely, 22224221444 is an apocalyptic number.

It is an amenable number.

2224221444 is an abundant number, since it is smaller than the sum of its proper divisors (3590333610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2224221444 is a wasteful number, since it uses less digits than its factorization.

2224221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864897 (or 6864886 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 2224221444 is about 47161.6522611327. The cubic root of 2224221444 is about 1305.3470975259.

Adding to 2224221444 its reverse (4441224222), we get a palindrome (6665445666).

The spelling of 2224221444 in words is "two billion, two hundred twenty-four million, two hundred twenty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 6864881 13729762 20594643 27459524 41189286 61783929 82378572 123567858 185351787 247135716 370703574 556055361 741407148 1112110722 2224221444