3644372012 has 12 divisors (see below), whose sum is σ = 6412887936. Its totient is φ = 1812118320.

The previous prime is 3644372009. The next prime is 3644372021. The reversal of 3644372012 is 2102734463.

It is a self number, because there is not a number n which added to its sum of digits gives 3644372012.

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, 2516108 + ... + 2517555.

It is an arithmetic number, because the mean of its divisors is an integer number (534407328).

Almost surely, 2^3644372012 is an apocalyptic number.

It is an amenable number.

3644372012 is a deficient number, since it is larger than the sum of its proper divisors (2768515924).

3644372012 is a wasteful number, since it uses less digits than its factorization.

3644372012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033848 (or 5033846 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 3644372012 is about 60368.6343393653. The cubic root of 3644372012 is about 1538.8899646798.

The spelling of 3644372012 in words is "three billion, six hundred forty-four million, three hundred seventy-two thousand, twelve".