30935872 has 28 divisors (see below), whose sum is σ = 66970656. Its totient is φ = 14061440.

The previous prime is 30935813. The next prime is 30935873. The reversal of 30935872 is 27853903.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30935873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21268 + ... + 22675.

Almost surely, 2^30935872 is an apocalyptic number.

30935872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30935872 is an abundant number, since it is smaller than the sum of its proper divisors (36034784).

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

30935872 is a wasteful number, since it uses less digits than its factorization.

30935872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43966 (or 43956 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 30935872 is about 5562.0025170796. The cubic root of 30935872 is about 313.9213023056.

The spelling of 30935872 in words is "thirty million, nine hundred thirty-five thousand, eight hundred seventy-two".