30994120 has 16 divisors (see below), whose sum is σ = 69736860. Its totient is φ = 12397632.

The previous prime is 30994091. The next prime is 30994147. The reversal of 30994120 is 2149903.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29095236 + 1898884 = 5394^2 + 1378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387387 + ... + 387466.

Almost surely, 2^30994120 is an apocalyptic number.

It is an amenable number.

30994120 is an abundant number, since it is smaller than the sum of its proper divisors (38742740).

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

30994120 is a wasteful number, since it uses less digits than its factorization.

30994120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774864 (or 774860 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30994120 is about 5567.2362982004. The cubic root of 30994120 is about 314.1182023507.

The spelling of 30994120 in words is "thirty million, nine hundred ninety-four thousand, one hundred twenty".