30625228 has 24 divisors (see below), whose sum is σ = 57344112. Its totient is φ = 14260224.

The previous prime is 30625187. The next prime is 30625229. The reversal of 30625228 is 82252603.

It is a junction number, because it is equal to n+sod(n) for n = 30625196 and 30625205.

It is not an unprimeable number, because it can be changed into a prime (30625229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4275 + ... + 8917.

It is an arithmetic number, because the mean of its divisors is an integer number (2389338).

Almost surely, 2^30625228 is an apocalyptic number.

It is an amenable number.

30625228 is a deficient number, since it is larger than the sum of its proper divisors (26718884).

30625228 is a wasteful number, since it uses less digits than its factorization.

30625228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761 (or 4759 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 30625228 is about 5534.0065052365. The cubic root of 30625228 is about 312.8670137009.

The spelling of 30625228 in words is "thirty million, six hundred twenty-five thousand, two hundred twenty-eight".