28750372 has 12 divisors (see below), whose sum is σ = 57500800. Its totient is φ = 12321576.

The previous prime is 28750321. The next prime is 28750411. The reversal of 28750372 is 27305782.

28750372 is an admirable 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, 513372 + ... + 513427.

Almost surely, 2^28750372 is an apocalyptic number.

It is an amenable number.

28750372 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.

28750372 is a wasteful number, since it uses less digits than its factorization.

28750372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026810 (or 1026808 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 28750372 is about 5361.9373364485. The cubic root of 28750372 is about 306.3476050406.

The spelling of 28750372 in words is "twenty-eight million, seven hundred fifty thousand, three hundred seventy-two".