2255744 has 16 divisors (see below), whose sum is σ = 4494120. Its totient is φ = 1127808.

The previous prime is 2255731. The next prime is 2255749. The reversal of 2255744 is 4475522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8684 + ... + 8939.

2^2255744 is an apocalyptic number.

It is an amenable number.

2255744 is a deficient number, since it is larger than the sum of its proper divisors (2238376).

2255744 is an equidigital number, since it uses as much as digits as its factorization.

2255744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17637 (or 17625 counting only the distinct ones).

The product of its digits is 11200, while the sum is 29.

The square root of 2255744 is about 1501.9134462412. The cubic root of 2255744 is about 131.1484826490.

The spelling of 2255744 in words is "two million, two hundred fifty-five thousand, seven hundred forty-four".