30712942 has 8 divisors (see below), whose sum is σ = 49613256. Its totient is φ = 14175192.

The previous prime is 30712937. The next prime is 30712961. The reversal of 30712942 is 24921703.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30712942.

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 3 ways as a sum of consecutive naturals, for example, 590608 + ... + 590659.

It is an arithmetic number, because the mean of its divisors is an integer number (6201657).

Almost surely, 2^30712942 is an apocalyptic number.

30712942 is a deficient number, since it is larger than the sum of its proper divisors (18900314).

30712942 is a wasteful number, since it uses less digits than its factorization.

30712942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181282.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30712942 is about 5541.9258385511. The cubic root of 30712942 is about 313.1654240954.

The spelling of 30712942 in words is "thirty million, seven hundred twelve thousand, nine hundred forty-two".