2231244 has 18 divisors (see below), whose sum is σ = 5640180. Its totient is φ = 743736.

The previous prime is 2231219. The next prime is 2231269. The reversal of 2231244 is 4421322.

It is an interprime number because it is at equal distance from previous prime (2231219) and next prime (2231269).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×2231244³ = 33324408653222924352, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 3⁷ + 1 + 2²¹ + 4³ + 4⁴ .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30954 + ... + 31025.

2^2231244 is an apocalyptic number.

It is an amenable number.

2231244 is an abundant number, since it is smaller than the sum of its proper divisors (3408936).

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

2231244 is a wasteful number, since it uses less digits than its factorization.

2231244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61989 (or 61984 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2231244 is about 1493.7349162418. The cubic root of 2231244 is about 130.6719449254.

Adding to 2231244 its reverse (4421322), we get a palindrome (6652566).

The spelling of 2231244 in words is "two million, two hundred thirty-one thousand, two hundred forty-four".