3990396 has 24 divisors (see below), whose sum is σ = 9349200. Its totient is φ = 1324672.

The previous prime is 3990383. The next prime is 3990419. The reversal of 3990396 is 6930993.

3990396 = 199² + 200² + ... + 270².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3280 + ... + 4328.

It is an arithmetic number, because the mean of its divisors is an integer number (389550).

Almost surely, 2^3990396 is an apocalyptic number.

It is an amenable number.

3990396 is an abundant number, since it is smaller than the sum of its proper divisors (5358804).

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

3990396 is a wasteful number, since it uses less digits than its factorization.

3990396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 39.

The square root of 3990396 is about 1997.5975570670. The cubic root of 3990396 is about 158.6129583851.

The spelling of 3990396 in words is "three million, nine hundred ninety thousand, three hundred ninety-six".