3642555136 has 72 divisors (see below), whose sum is σ = 7978786704. Its totient is φ = 1645916160.

The previous prime is 3642555083. The next prime is 3642555143. The reversal of 3642555136 is 6315552463.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 483430 + ... + 490906.

It is an arithmetic number, because the mean of its divisors is an integer number (110816482).

Almost surely, 2^3642555136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3642555136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3989393352).

3642555136 is an abundant number, since it is smaller than the sum of its proper divisors (4336231568).

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

3642555136 is a wasteful number, since it uses less digits than its factorization.

3642555136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7677 (or 7663 counting only the distinct ones).

The product of its digits is 324000, while the sum is 40.

The square root of 3642555136 is about 60353.5842846140. The cubic root of 3642555136 is about 1538.6341879185.

The spelling of 3642555136 in words is "three billion, six hundred forty-two million, five hundred fifty-five thousand, one hundred thirty-six".