3990392 has 16 divisors (see below), whose sum is σ = 8550960. Its totient is φ = 1710144.

The previous prime is 3990383. The next prime is 3990419. The reversal of 3990392 is 2930993.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35573 + ... + 35684.

It is an arithmetic number, because the mean of its divisors is an integer number (534435).

Almost surely, 2^3990392 is an apocalyptic number.

It is an amenable number.

3990392 is an abundant number, since it is smaller than the sum of its proper divisors (4560568).

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

3990392 is a wasteful number, since it uses less digits than its factorization.

3990392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71270 (or 71266 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 3990392 is about 1997.5965558641. The cubic root of 3990392 is about 158.6129053869.

The spelling of 3990392 in words is "three million, nine hundred ninety thousand, three hundred ninety-two".