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2240444 = 223111801
BaseRepresentation
bin1000100010111110111100
311012211022102
420202332330
51033143234
6120004232
725020623
oct10427674
94184272
102240444
1112a0308
12900678
13605a0b
144246ba
152e3c7e
hex222fbc

2240444 has 12 divisors (see below), whose sum is σ = 3935568. Its totient is φ = 1116000.

The previous prime is 2240431. The next prime is 2240449. The reversal of 2240444 is 4440422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (327964).

22240444 is an apocalyptic number.

It is an amenable number.

2240444 is a deficient number, since it is larger than the sum of its proper divisors (1695124).

2240444 is a wasteful number, since it uses less digits than its factorization.

2240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2240444 is about 1496.8112773493. The cubic root of 2240444 is about 130.8512967974.

Adding to 2240444 its reverse (4440422), we get a palindrome (6680866).

The spelling of 2240444 in words is "two million, two hundred forty thousand, four hundred forty-four".

Divisors: 1 2 4 311 622 1244 1801 3602 7204 560111 1120222 2240444