30662972 has 6 divisors (see below), whose sum is σ = 53660208. Its totient is φ = 15331484.

The previous prime is 30662969. The next prime is 30662987. The reversal of 30662972 is 27926603.

It is a happy number.

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, 3832868 + ... + 3832875.

It is an arithmetic number, because the mean of its divisors is an integer number (8943368).

Almost surely, 2^30662972 is an apocalyptic number.

It is an amenable number.

30662972 is a deficient number, since it is larger than the sum of its proper divisors (22997236).

30662972 is a wasteful number, since it uses less digits than its factorization.

30662972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665747 (or 7665745 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 30662972 is about 5537.4156426983. The cubic root of 30662972 is about 312.9954917063.

The spelling of 30662972 in words is "thirty million, six hundred sixty-two thousand, nine hundred seventy-two".