30715942 has 16 divisors (see below), whose sum is σ = 46685520. Its totient is φ = 15155712.

The previous prime is 30715933. The next prime is 30715961. The reversal of 30715942 is 24951703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86838 + ... + 87190.

It is an arithmetic number, because the mean of its divisors is an integer number (2917845).

Almost surely, 2^30715942 is an apocalyptic number.

30715942 is a deficient number, since it is larger than the sum of its proper divisors (15969578).

30715942 is a wasteful number, since it uses less digits than its factorization.

30715942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 30715942 is about 5542.1964959752. The cubic root of 30715942 is about 313.1756202931.

The spelling of 30715942 in words is "thirty million, seven hundred fifteen thousand, nine hundred forty-two".