30724982 has 4 divisors (see below), whose sum is σ = 46087476. Its totient is φ = 15362490.

The previous prime is 30724979. The next prime is 30724997. The reversal of 30724982 is 28942703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28942703 = 1627 ⋅17789.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7681244 + ... + 7681247.

It is an arithmetic number, because the mean of its divisors is an integer number (11521869).

Almost surely, 2^30724982 is an apocalyptic number.

30724982 is a deficient number, since it is larger than the sum of its proper divisors (15362494).

30724982 is a wasteful number, since it uses less digits than its factorization.

30724982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15362493.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 30724982 is about 5543.0119971005. The cubic root of 30724982 is about 313.2063408216.

The spelling of 30724982 in words is "thirty million, seven hundred twenty-four thousand, nine hundred eighty-two".