30605664 has 24 divisors (see below), whose sum is σ = 80340120. Its totient is φ = 10201856.

The previous prime is 30605657. The next prime is 30605671. The reversal of 30605664 is 46650603.

It is an interprime number because it is at equal distance from previous prime (30605657) and next prime (30605671).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159309 + ... + 159500.

It is an arithmetic number, because the mean of its divisors is an integer number (3347505).

Almost surely, 2^30605664 is an apocalyptic number.

It is an amenable number.

30605664 is an abundant number, since it is smaller than the sum of its proper divisors (49734456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30605664 is a wasteful number, since it uses less digits than its factorization.

30605664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318822 (or 318814 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 30605664 is about 5532.2386065679. The cubic root of 30605664 is about 312.8003776353.

The spelling of 30605664 in words is "thirty million, six hundred five thousand, six hundred sixty-four".