30970272 has 24 divisors (see below), whose sum is σ = 81297216. Its totient is φ = 10323392.

The previous prime is 30970267. The next prime is 30970273. The reversal of 30970272 is 27207903.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (30970273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161208 + ... + 161399.

It is an arithmetic number, because the mean of its divisors is an integer number (3387384).

Almost surely, 2^30970272 is an apocalyptic number.

30970272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30970272 is an abundant number, since it is smaller than the sum of its proper divisors (50326944).

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

30970272 is a wasteful number, since it uses less digits than its factorization.

30970272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322620 (or 322612 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 30970272 is about 5565.0940692858. The cubic root of 30970272 is about 314.0376170331.

The spelling of 30970272 in words is "thirty million, nine hundred seventy thousand, two hundred seventy-two".