30970518 has 16 divisors (see below), whose sum is σ = 62216640. Its totient is φ = 10277576.

The previous prime is 30970501. The next prime is 30970543. The reversal of 30970518 is 81507903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10008 + ... + 12731.

It is an arithmetic number, because the mean of its divisors is an integer number (3888540).

Almost surely, 2^30970518 is an apocalyptic number.

30970518 is an abundant number, since it is smaller than the sum of its proper divisors (31246122).

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

30970518 is a wasteful number, since it uses less digits than its factorization.

30970518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22971.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 30970518 is about 5565.1161712942. The cubic root of 30970518 is about 314.0384485084.

The spelling of 30970518 in words is "thirty million, nine hundred seventy thousand, five hundred eighteen".