30517982 has 16 divisors (see below), whose sum is σ = 50032512. Its totient is φ = 13845720.

The previous prime is 30517969. The next prime is 30517997. The reversal of 30517982 is 28971503.

It is a congruent number.

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, 15413 + ... + 17279.

It is an arithmetic number, because the mean of its divisors is an integer number (3127032).

Almost surely, 2^30517982 is an apocalyptic number.

30517982 is a deficient number, since it is larger than the sum of its proper divisors (19514530).

30517982 is a wasteful number, since it uses less digits than its factorization.

30517982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 30517982 is about 5524.3082824911. The cubic root of 30517982 is about 312.5013785539.

The spelling of 30517982 in words is "thirty million, five hundred seventeen thousand, nine hundred eighty-two".