30442660 has 24 divisors (see below), whose sum is σ = 64980216. Its totient is φ = 11976960.

The previous prime is 30442627. The next prime is 30442669. The reversal of 30442660 is 6624403.

It can be written as a sum of positive squares in 4 ways, for example, as 565504 + 29877156 = 752^2 + 5466^2 .

It is not an unprimeable number, because it can be changed into a prime (30442669) 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, 11257 + ... + 13696.

It is an arithmetic number, because the mean of its divisors is an integer number (2707509).

Almost surely, 2^30442660 is an apocalyptic number.

It is an amenable number.

30442660 is an abundant number, since it is smaller than the sum of its proper divisors (34537556).

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

30442660 is a wasteful number, since it uses less digits than its factorization.

30442660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25023 (or 25021 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 30442660 is about 5517.4867466991. The cubic root of 30442660 is about 312.2440699232.

The spelling of 30442660 in words is "thirty million, four hundred forty-two thousand, six hundred sixty".