30628456 has 32 divisors (see below), whose sum is σ = 63086400. Its totient is φ = 13875840.

The previous prime is 30628453. The next prime is 30628457. The reversal of 30628456 is 65482603.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30628453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885 + ... + 7876.

It is an arithmetic number, because the mean of its divisors is an integer number (1971450).

Almost surely, 2^30628456 is an apocalyptic number.

It is an amenable number.

30628456 is an abundant number, since it is smaller than the sum of its proper divisors (32457944).

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

30628456 is a wasteful number, since it uses less digits than its factorization.

30628456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8809 (or 8805 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 30628456 is about 5534.2981488171. The cubic root of 30628456 is about 312.8780057197.

The spelling of 30628456 in words is "thirty million, six hundred twenty-eight thousand, four hundred fifty-six".