30564942 has 16 divisors (see below), whose sum is σ = 61904640. Its totient is φ = 10059192.

The previous prime is 30564893. The next prime is 30564943. The reversal of 30564942 is 24946503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30564943) 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, 31768 + ... + 32715.

It is an arithmetic number, because the mean of its divisors is an integer number (3869040).

Almost surely, 2^30564942 is an apocalyptic number.

30564942 is an abundant number, since it is smaller than the sum of its proper divisors (31339698).

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

30564942 is a wasteful number, since it uses less digits than its factorization.

30564942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64567.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 30564942 is about 5528.5569545768. The cubic root of 30564942 is about 312.6615851277.

The spelling of 30564942 in words is "thirty million, five hundred sixty-four thousand, nine hundred forty-two".