28039352 has 16 divisors (see below), whose sum is σ = 57353400. Its totient is φ = 12745120.

The previous prime is 28039343. The next prime is 28039387. The reversal of 28039352 is 25393082.

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, 159227 + ... + 159402.

Almost surely, 2^28039352 is an apocalyptic number.

28039352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28039352 is an abundant number, since it is smaller than the sum of its proper divisors (29314048).

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

28039352 is a wasteful number, since it uses less digits than its factorization.

28039352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318646 (or 318642 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 28039352 is about 5295.2197310404. The cubic root of 28039352 is about 303.8010875589.

The spelling of 28039352 in words is "twenty-eight million, thirty-nine thousand, three hundred fifty-two".