30664641 has 24 divisors (see below), whose sum is σ = 47779680. Its totient is φ = 17442432.

The previous prime is 30664637. The next prime is 30664657. The reversal of 30664641 is 14646603.

It is not a de Polignac number, because 30664641 - 2² = 30664637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30664599 and 30664608.

It is not an unprimeable number, because it can be changed into a prime (30664661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49230 + ... + 49848.

It is an arithmetic number, because the mean of its divisors is an integer number (1990820).

Almost surely, 2^30664641 is an apocalyptic number.

It is an amenable number.

30664641 is a deficient number, since it is larger than the sum of its proper divisors (17115039).

30664641 is a wasteful number, since it uses less digits than its factorization.

30664641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 30664641 is about 5537.5663427177. The cubic root of 30664641 is about 313.0011704339.

The spelling of 30664641 in words is "thirty million, six hundred sixty-four thousand, six hundred forty-one".