30304972 has 6 divisors (see below), whose sum is σ = 53033708. Its totient is φ = 15152484.

The previous prime is 30304957. The next prime is 30304979. The reversal of 30304972 is 27940303.

It is a self number, because there is not a number n which added to its sum of digits gives 30304972.

It is not an unprimeable number, because it can be changed into a prime (30304979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3788118 + ... + 3788125.

Almost surely, 2^30304972 is an apocalyptic number.

It is an amenable number.

30304972 is a deficient number, since it is larger than the sum of its proper divisors (22728736).

30304972 is a wasteful number, since it uses less digits than its factorization.

30304972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7576247 (or 7576245 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 30304972 is about 5504.9951861923. The cubic root of 30304972 is about 311.7726126447.

The spelling of 30304972 in words is "thirty million, three hundred four thousand, nine hundred seventy-two".