28038804 has 24 divisors (see below), whose sum is σ = 65516640. Its totient is φ = 9333024.

The previous prime is 28038757. The next prime is 28038809. The reversal of 28038804 is 40883082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28038809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11082 + ... + 13374.

It is an arithmetic number, because the mean of its divisors is an integer number (2729860).

Almost surely, 2^28038804 is an apocalyptic number.

It is an amenable number.

28038804 is an abundant number, since it is smaller than the sum of its proper divisors (37477836).

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

28038804 is a wasteful number, since it uses less digits than its factorization.

28038804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319 (or 3317 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 28038804 is about 5295.1679860038. The cubic root of 28038804 is about 303.7991083872.

The spelling of 28038804 in words is "twenty-eight million, thirty-eight thousand, eight hundred four".