30938982 has 8 divisors (see below), whose sum is σ = 61877976. Its totient is φ = 10312992.

The previous prime is 30938977. The next prime is 30938983. The reversal of 30938982 is 28983903.

It is a sphenic number, since it is the product of 3 distinct primes.

30938982 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30938983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2578243 + ... + 2578254.

It is an arithmetic number, because the mean of its divisors is an integer number (7734747).

Almost surely, 2^30938982 is an apocalyptic number.

30938982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30938982 is a wasteful number, since it uses less digits than its factorization.

30938982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156502.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 30938982 is about 5562.2820856192. The cubic root of 30938982 is about 313.9318215127.

The spelling of 30938982 in words is "thirty million, nine hundred thirty-eight thousand, nine hundred eighty-two".