30660564 has 48 divisors (see below), whose sum is σ = 81446400. Its totient is φ = 8886240.

The previous prime is 30660563. The next prime is 30660577. The reversal of 30660564 is 46506603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30660563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2014 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (1696800).

Almost surely, 2^30660564 is an apocalyptic number.

It is an amenable number.

30660564 is an abundant number, since it is smaller than the sum of its proper divisors (50785836).

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

30660564 is a wasteful number, since it uses less digits than its factorization.

30660564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140 (or 10138 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 30660564 is about 5537.1982084805. The cubic root of 30660564 is about 312.9872981879.

The spelling of 30660564 in words is "thirty million, six hundred sixty thousand, five hundred sixty-four".