30649672 has 32 divisors (see below), whose sum is σ = 58705920. Its totient is φ = 14999040.

The previous prime is 30649667. The next prime is 30649711. The reversal of 30649672 is 27694603.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

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, 98397 + ... + 98707.

It is an arithmetic number, because the mean of its divisors is an integer number (1834560).

Almost surely, 2^30649672 is an apocalyptic number.

It is an amenable number.

30649672 is a deficient number, since it is larger than the sum of its proper divisors (28056248).

30649672 is a wasteful number, since it uses less digits than its factorization.

30649672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 30649672 is about 5536.2145912166. The cubic root of 30649672 is about 312.9502314484.

The spelling of 30649672 in words is "thirty million, six hundred forty-nine thousand, six hundred seventy-two".