30649372 has 24 divisors (see below), whose sum is σ = 58113216. Its totient is φ = 14059968.

The previous prime is 30649349. The next prime is 30649391. The reversal of 30649372 is 27394603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7293 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (2421384).

Almost surely, 2^30649372 is an apocalyptic number.

It is an amenable number.

30649372 is a deficient number, since it is larger than the sum of its proper divisors (27463844).

30649372 is a wasteful number, since it uses less digits than its factorization.

30649372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 30649372 is about 5536.1874968249. The cubic root of 30649372 is about 312.9492103893.

The spelling of 30649372 in words is "thirty million, six hundred forty-nine thousand, three hundred seventy-two".