3990132 has 72 divisors (see below), whose sum is σ = 10832640. Its totient is φ = 1235520.

The previous prime is 3990127. The next prime is 3990157. The reversal of 3990132 is 2310993.

It is a junction number, because it is equal to n+sod(n) for n = 3990096 and 3990105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50469 + ... + 50547.

Almost surely, 2^3990132 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 3990132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5416320).

3990132 is an abundant number, since it is smaller than the sum of its proper divisors (6842508).

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

3990132 is a wasteful number, since it uses less digits than its factorization.

3990132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 3990132 is about 1997.5314765981. The cubic root of 3990132 is about 158.6094604245.

The spelling of 3990132 in words is "three million, nine hundred ninety thousand, one hundred thirty-two".