30920492 has 6 divisors (see below), whose sum is σ = 54110868. Its totient is φ = 15460244.

The previous prime is 30920479. The next prime is 30920503. The reversal of 30920492 is 29402903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3865058 + ... + 3865065.

It is an arithmetic number, because the mean of its divisors is an integer number (9018478).

Almost surely, 2^30920492 is an apocalyptic number.

It is an amenable number.

30920492 is a deficient number, since it is larger than the sum of its proper divisors (23190376).

30920492 is a wasteful number, since it uses less digits than its factorization.

30920492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730127 (or 7730125 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30920492 is about 5560.6197496322. The cubic root of 30920492 is about 313.8692709081.

The spelling of 30920492 in words is "thirty million, nine hundred twenty thousand, four hundred ninety-two".