30970960 has 20 divisors (see below), whose sum is σ = 72007668. Its totient is φ = 12388352.

The previous prime is 30970939. The next prime is 30970963. The reversal of 30970960 is 6907903.

It can be written as a sum of positive squares in 2 ways, for example, as 5326864 + 25644096 = 2308^2 + 5064^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970963) 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, 193489 + ... + 193648.

Almost surely, 2^30970960 is an apocalyptic number.

It is an amenable number.

30970960 is an abundant number, since it is smaller than the sum of its proper divisors (41036708).

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

30970960 is a wasteful number, since it uses less digits than its factorization.

30970960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387150 (or 387144 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 30970960 is about 5565.1558828123. The cubic root of 30970960 is about 314.0399424489.

The spelling of 30970960 in words is "thirty million, nine hundred seventy thousand, nine hundred sixty".