28037044 has 12 divisors (see below), whose sum is σ = 56074144. Its totient is φ = 12015864.

The previous prime is 28037041. The next prime is 28037057. The reversal of 28037044 is 44073082.

28037044 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1001323 = 28037044 / (2 + 8 + 0 + 3 + 7 + 0 + 4 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28037041) 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, 500634 + ... + 500689.

Almost surely, 2^28037044 is an apocalyptic number.

It is an amenable number.

28037044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28037044 is a wasteful number, since it uses less digits than its factorization.

28037044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001334 (or 1001332 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 28037044 is about 5295.0017941451. The cubic root of 28037044 is about 303.7927517487.

The spelling of 28037044 in words is "twenty-eight million, thirty-seven thousand, forty-four".