3640252508 has 12 divisors (see below), whose sum is σ = 6428887080. Its totient is φ = 1803427632.

The previous prime is 3640252501. The next prime is 3640252519. The reversal of 3640252508 is 8052520463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640252501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4174166 + ... + 4175037.

It is an arithmetic number, because the mean of its divisors is an integer number (535740590).

Almost surely, 2^3640252508 is an apocalyptic number.

It is an amenable number.

3640252508 is a deficient number, since it is larger than the sum of its proper divisors (2788634572).

3640252508 is a wasteful number, since it uses less digits than its factorization.

3640252508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349316 (or 8349314 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 3640252508 is about 60334.5051193759. The cubic root of 3640252508 is about 1538.3099055730.

The spelling of 3640252508 in words is "three billion, six hundred forty million, two hundred fifty-two thousand, five hundred eight".