3640608 has 36 divisors (see below), whose sum is σ = 10353798. Its totient is φ = 1213440.

The previous prime is 3640597. The next prime is 3640633. The reversal of 3640608 is 8060463.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 144 = 1908^2 + 12^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6033 + ... + 6608.

Almost surely, 2^3640608 is an apocalyptic number.

It is an amenable number.

3640608 is an abundant number, since it is smaller than the sum of its proper divisors (6713190).

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

3640608 is a wasteful number, since it uses less digits than its factorization.

3640608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12657 (or 12646 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 3640608 is about 1908.0377354759. The cubic root of 3640608 is about 153.8359978937.

The spelling of 3640608 in words is "three million, six hundred forty thousand, six hundred eight".