30625880 has 32 divisors (see below), whose sum is σ = 71906400. Its totient is φ = 11717376.

The previous prime is 30625877. The next prime is 30625883. The reversal of 30625880 is 8852603.

It is an interprime number because it is at equal distance from previous prime (30625877) and next prime (30625883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30625883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15725 + ... + 17564.

It is an arithmetic number, because the mean of its divisors is an integer number (2247075).

Almost surely, 2^30625880 is an apocalyptic number.

It is an amenable number.

30625880 is an abundant number, since it is smaller than the sum of its proper divisors (41280520).

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

30625880 is a wasteful number, since it uses less digits than its factorization.

30625880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33323 (or 33319 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 30625880 is about 5534.0654134190. The cubic root of 30625880 is about 312.8692339603.

The spelling of 30625880 in words is "thirty million, six hundred twenty-five thousand, eight hundred eighty".