3639838488 has 128 divisors (see below), whose sum is σ = 11059372800. Its totient is φ = 983001600.

The previous prime is 3639838469. The next prime is 3639838511. The reversal of 3639838488 is 8848389363.

3639838488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3639838488² = 26496848437452252288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81243 + ... + 117813.

It is an arithmetic number, because the mean of its divisors is an integer number (86401350).

Almost surely, 2^3639838488 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 3639838488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5529686400).

3639838488 is an abundant number, since it is smaller than the sum of its proper divisors (7419534312).

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

3639838488 is a wasteful number, since it uses less digits than its factorization.

3639838488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36633 (or 36629 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 60.

The square root of 3639838488 is about 60331.0739834789. The cubic root of 3639838488 is about 1538.2515840498.

The spelling of 3639838488 in words is "three billion, six hundred thirty-nine million, eight hundred thirty-eight thousand, four hundred eighty-eight".