30575972 has 24 divisors (see below), whose sum is σ = 61368384. Its totient is φ = 13057632.

The previous prime is 30575971. The next prime is 30576017. The reversal of 30575972 is 27957503.

It is not an unprimeable number, because it can be changed into a prime (30575971) 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, 6818 + ... + 10374.

It is an arithmetic number, because the mean of its divisors is an integer number (2557016).

Almost surely, 2^30575972 is an apocalyptic number.

It is an amenable number.

30575972 is an abundant number, since it is smaller than the sum of its proper divisors (30792412).

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

30575972 is a wasteful number, since it uses less digits than its factorization.

30575972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 30575972 is about 5529.5544124278. The cubic root of 30575972 is about 312.6991907667.

The spelling of 30575972 in words is "thirty million, five hundred seventy-five thousand, nine hundred seventy-two".