30742732 has 24 divisors (see below), whose sum is σ = 57195936. Its totient is φ = 14408448.

The previous prime is 30742727. The next prime is 30742759. The reversal of 30742732 is 23724703.

It is a self number, because there is not a number n which added to its sum of digits gives 30742732.

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, 19153 + ... + 20695.

It is an arithmetic number, because the mean of its divisors is an integer number (2383164).

Almost surely, 2^30742732 is an apocalyptic number.

It is an amenable number.

30742732 is a deficient number, since it is larger than the sum of its proper divisors (26453204).

30742732 is a wasteful number, since it uses less digits than its factorization.

30742732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 30742732 is about 5544.6128809864. The cubic root of 30742732 is about 313.2666429163.

The spelling of 30742732 in words is "thirty million, seven hundred forty-two thousand, seven hundred thirty-two".