28038964 has 12 divisors (see below), whose sum is σ = 49801024. Its totient is φ = 13810104.

The previous prime is 28038953. The next prime is 28038971. The reversal of 28038964 is 46983082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52044 + ... + 52579.

Almost surely, 2^28038964 is an apocalyptic number.

It is an amenable number.

28038964 is a deficient number, since it is larger than the sum of its proper divisors (21762060).

28038964 is a wasteful number, since it uses less digits than its factorization.

28038964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104694 (or 104692 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 28038964 is about 5295.1830940960. The cubic root of 28038964 is about 303.7996862502.

The spelling of 28038964 in words is "twenty-eight million, thirty-eight thousand, nine hundred sixty-four".