30625484 has 12 divisors (see below), whose sum is σ = 54503400. Its totient is φ = 15053088.

The previous prime is 30625481. The next prime is 30625493. The reversal of 30625484 is 48452603.

It is a self number, because there is not a number n which added to its sum of digits gives 30625484.

It is not an unprimeable number, because it can be changed into a prime (30625481) 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, 64649 + ... + 65120.

It is an arithmetic number, because the mean of its divisors is an integer number (4541950).

Almost surely, 2^30625484 is an apocalyptic number.

It is an amenable number.

30625484 is a deficient number, since it is larger than the sum of its proper divisors (23877916).

30625484 is a wasteful number, since it uses less digits than its factorization.

30625484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129832 (or 129830 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 30625484 is about 5534.0296349044. The cubic root of 30625484 is about 312.8678854630.

It can be divided in two parts, 30625 and 484, that multiplied together give a square (14822500 = 3850²).

The spelling of 30625484 in words is "thirty million, six hundred twenty-five thousand, four hundred eighty-four".