28044056 has 16 divisors (see below), whose sum is σ = 53368440. Its totient is φ = 13812480.

The previous prime is 28044047. The next prime is 28044059. The reversal of 28044056 is 65044082.

It is a super-2 number, since 2×28044056² = 1572938153862272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28044059) 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, 25625 + ... + 26696.

Almost surely, 2^28044056 is an apocalyptic number.

It is an amenable number.

28044056 is a deficient number, since it is larger than the sum of its proper divisors (25324384).

28044056 is a wasteful number, since it uses less digits than its factorization.

28044056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52394 (or 52390 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 28044056 is about 5295.6638866152. The cubic root of 28044056 is about 303.8180755931.

The spelling of 28044056 in words is "twenty-eight million, forty-four thousand, fifty-six".