30645328 has 40 divisors (see below), whose sum is σ = 71433920. Its totient is φ = 12441600.

The previous prime is 30645313. The next prime is 30645371. The reversal of 30645328 is 82354603.

It is a super-2 number, since 2×30645328² = 1878272256455168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30645328.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5073 + ... + 9328.

It is an arithmetic number, because the mean of its divisors is an integer number (1785848).

Almost surely, 2^30645328 is an apocalyptic number.

30645328 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30645328 is an abundant number, since it is smaller than the sum of its proper divisors (40788592).

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

30645328 is a wasteful number, since it uses less digits than its factorization.

30645328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435 (or 14429 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 30645328 is about 5535.8222514817. The cubic root of 30645328 is about 312.9354458629.

The spelling of 30645328 in words is "thirty million, six hundred forty-five thousand, three hundred twenty-eight".