30670988 has 6 divisors (see below), whose sum is σ = 53674236. Its totient is φ = 15335492.

The previous prime is 30670987. The next prime is 30670999. The reversal of 30670988 is 88907603.

It is a super-2 number, since 2×30670988² = 1881419009792288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30670987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833870 + ... + 3833877.

It is an arithmetic number, because the mean of its divisors is an integer number (8945706).

Almost surely, 2^30670988 is an apocalyptic number.

It is an amenable number.

30670988 is a deficient number, since it is larger than the sum of its proper divisors (23003248).

30670988 is a wasteful number, since it uses less digits than its factorization.

30670988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7667751 (or 7667749 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 30670988 is about 5538.1393987512. The cubic root of 30670988 is about 313.0227640492.

The spelling of 30670988 in words is "thirty million, six hundred seventy thousand, nine hundred eighty-eight".