30996290 has 24 divisors (see below), whose sum is σ = 60418548. Its totient is φ = 11444160.

The previous prime is 30996283. The next prime is 30996307. The reversal of 30996290 is 9269903.

It can be written as a sum of positive squares in 6 ways, for example, as 271441 + 30724849 = 521^2 + 5543^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7481 + ... + 10860.

Almost surely, 2^30996290 is an apocalyptic number.

30996290 is a deficient number, since it is larger than the sum of its proper divisors (29422258).

30996290 is a wasteful number, since it uses less digits than its factorization.

30996290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18374 (or 18361 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 30996290 is about 5567.4311850260. The cubic root of 30996290 is about 314.1255329949.

The spelling of 30996290 in words is "thirty million, nine hundred ninety-six thousand, two hundred ninety".