30664645 has 16 divisors (see below), whose sum is σ = 40540032. Its totient is φ = 22080960.

The previous prime is 30664637. The next prime is 30664657. The reversal of 30664645 is 54646603.

It is not a de Polignac number, because 30664645 - 2³ = 30664637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30664645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2959 + ... + 8371.

It is an arithmetic number, because the mean of its divisors is an integer number (2533752).

Almost surely, 2^30664645 is an apocalyptic number.

It is an amenable number.

30664645 is a deficient number, since it is larger than the sum of its proper divisors (9875387).

30664645 is a wasteful number, since it uses less digits than its factorization.

30664645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 30664645 is about 5537.5667038872. The cubic root of 30664645 is about 313.0011840435.

The spelling of 30664645 in words is "thirty million, six hundred sixty-four thousand, six hundred forty-five".