3664392644 has 24 divisors (see below), whose sum is σ = 7094195136. Its totient is φ = 1642172000.

The previous prime is 3664392623. The next prime is 3664392659. The reversal of 3664392644 is 4462934663.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583367 + ... + 589614.

It is an arithmetic number, because the mean of its divisors is an integer number (295591464).

Almost surely, 2^3664392644 is an apocalyptic number.

It is an amenable number.

3664392644 is a deficient number, since it is larger than the sum of its proper divisors (3429802492).

3664392644 is a wasteful number, since it uses less digits than its factorization.

3664392644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173067 (or 1173065 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 47.

The square root of 3664392644 is about 60534.2270455319. The cubic root of 3664392644 is about 1541.7028226917.

The spelling of 3664392644 in words is "three billion, six hundred sixty-four million, three hundred ninety-two thousand, six hundred forty-four".