3644407004 has 24 divisors (see below), whose sum is σ = 7317189600. Its totient is φ = 1555808256.

The previous prime is 3644407001. The next prime is 3644407021. The reversal of 3644407004 is 4007044463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644407001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246029 + ... + 260420.

It is an arithmetic number, because the mean of its divisors is an integer number (304882900).

Almost surely, 2^3644407004 is an apocalyptic number.

It is an amenable number.

3644407004 is an abundant number, since it is smaller than the sum of its proper divisors (3672782596).

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

3644407004 is a wasteful number, since it uses less digits than its factorization.

3644407004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506717 (or 506715 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 3644407004 is about 60368.9241580467. The cubic root of 3644407004 is about 1538.8948899604.

The spelling of 3644407004 in words is "three billion, six hundred forty-four million, four hundred seven thousand, four".