3990589632 has 112 divisors (see below), whose sum is σ = 11953219680. Its totient is φ = 1305068544.

The previous prime is 3990589621. The next prime is 3990589637. The reversal of 3990589632 is 2369850993.

3990589632 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 2×3990589632² = 31849611222051790848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3990589637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69798 + ... + 113370.

Almost surely, 2^3990589632 is an apocalyptic number.

3990589632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3990589632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5976609840).

3990589632 is an abundant number, since it is smaller than the sum of its proper divisors (7962630048).

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

3990589632 is a wasteful number, since it uses less digits than its factorization.

3990589632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43647 (or 43631 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The square root of 3990589632 is about 63171.1139050120. The cubic root of 3990589632 is about 1586.1552388216.

The spelling of 3990589632 in words is "three billion, nine hundred ninety million, five hundred eighty-nine thousand, six hundred thirty-two".