30986512 has 20 divisors (see below), whose sum is σ = 63568476. Its totient is φ = 14581760.

The previous prime is 30986509. The next prime is 30986533. The reversal of 30986512 is 21568903.

It can be written as a sum of positive squares in 2 ways, for example, as 16516096 + 14470416 = 4064^2 + 3804^2 .

It is a super-2 number, since 2×30986512² = 1920327851852288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 56689 + ... + 57232.

Almost surely, 2^30986512 is an apocalyptic number.

It is an amenable number.

30986512 is an abundant number, since it is smaller than the sum of its proper divisors (32581964).

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

30986512 is a wasteful number, since it uses less digits than its factorization.

30986512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113946 (or 113940 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 30986512 is about 5566.5529728909. The cubic root of 30986512 is about 314.0924984769.

The spelling of 30986512 in words is "thirty million, nine hundred eighty-six thousand, five hundred twelve".