30968356 has 24 divisors (see below), whose sum is σ = 57629880. Its totient is φ = 14510592.

The previous prime is 30968341. The next prime is 30968369. The reversal of 30968356 is 65386903.

It can be written as a sum of positive squares in 4 ways, for example, as 1440000 + 29528356 = 1200^2 + 5434^2 .

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, 17446 + ... + 19138.

It is an arithmetic number, because the mean of its divisors is an integer number (2401245).

Almost surely, 2^30968356 is an apocalyptic number.

It is an amenable number.

30968356 is a deficient number, since it is larger than the sum of its proper divisors (26661524).

30968356 is a wasteful number, since it uses less digits than its factorization.

30968356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 30968356 is about 5564.9219221836. The cubic root of 30968356 is about 314.0311408389.

The spelling of 30968356 in words is "thirty million, nine hundred sixty-eight thousand, three hundred fifty-six".