3648640472 has 32 divisors (see below), whose sum is σ = 7015918800. Its totient is φ = 1777918464.

The previous prime is 3648640421. The next prime is 3648640477. The reversal of 3648640472 is 2740468463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648640477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145604 + ... + 168812.

Almost surely, 2^3648640472 is an apocalyptic number.

It is an amenable number.

3648640472 is a deficient number, since it is larger than the sum of its proper divisors (3367278328).

3648640472 is a wasteful number, since it uses less digits than its factorization.

3648640472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23715 (or 23711 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 44.

The square root of 3648640472 is about 60403.9772862682. The cubic root of 3648640472 is about 1539.4905370495.

The spelling of 3648640472 in words is "three billion, six hundred forty-eight million, six hundred forty thousand, four hundred seventy-two".