30938492 has 18 divisors (see below), whose sum is σ = 58628808. Its totient is φ = 14278992.

The previous prime is 30938461. The next prime is 30938503. The reversal of 30938492 is 29483903.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22208 + ... + 23559.

It is an arithmetic number, because the mean of its divisors is an integer number (3257156).

Almost surely, 2^30938492 is an apocalyptic number.

It is an amenable number.

30938492 is a deficient number, since it is larger than the sum of its proper divisors (27690316).

30938492 is a wasteful number, since it uses less digits than its factorization.

30938492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45797 (or 45782 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 30938492 is about 5562.2380387754. The cubic root of 30938492 is about 313.9301641925.

The spelling of 30938492 in words is "thirty million, nine hundred thirty-eight thousand, four hundred ninety-two".