3990532 has 48 divisors (see below), whose sum is σ = 9063040. Its totient is φ = 1492992.

The previous prime is 3990521. The next prime is 3990541. The reversal of 3990532 is 2350993.

It is a junction number, because it is equal to n+sod(n) for n = 3990494 and 3990503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6628 + ... + 7204.

Almost surely, 2^3990532 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 3990532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4531520).

3990532 is an abundant number, since it is smaller than the sum of its proper divisors (5072508).

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

3990532 is a wasteful number, since it uses less digits than its factorization.

3990532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 3990532 is about 1997.6315976676. The cubic root of 3990532 is about 158.6147603046.

The spelling of 3990532 in words is "three million, nine hundred ninety thousand, five hundred thirty-two".