28038588 has 24 divisors (see below), whose sum is σ = 67020240. Its totient is φ = 9118080.

The previous prime is 28038583. The next prime is 28038599. The reversal of 28038588 is 88583082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28038583) 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, 28003 + ... + 28986.

It is an arithmetic number, because the mean of its divisors is an integer number (2792510).

Almost surely, 2^28038588 is an apocalyptic number.

It is an amenable number.

28038588 is an abundant number, since it is smaller than the sum of its proper divisors (38981652).

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

28038588 is a wasteful number, since it uses less digits than its factorization.

28038588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57037 (or 57035 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 28038588 is about 5295.1475900111. The cubic root of 28038588 is about 303.7983282686.

The spelling of 28038588 in words is "twenty-eight million, thirty-eight thousand, five hundred eighty-eight".