3642039864 has 48 divisors (see below), whose sum is σ = 9913966920. Its totient is φ = 1207846080.

The previous prime is 3642039859. The next prime is 3642039883. The reversal of 3642039864 is 4689302463.

3642039864 is a `hidden beast` number, since 364 + 203 + 9 + 86 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114202 + ... + 142569.

Almost surely, 2^3642039864 is an apocalyptic number.

It is an amenable number.

3642039864 is an abundant number, since it is smaller than the sum of its proper divisors (6271927056).

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

3642039864 is a wasteful number, since it uses less digits than its factorization.

3642039864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256980 (or 256973 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 3642039864 is about 60349.3153565142. The cubic root of 3642039864 is about 1538.5616333085.

The spelling of 3642039864 in words is "three billion, six hundred forty-two million, thirty-nine thousand, eight hundred sixty-four".