3990922 has 32 divisors (see below), whose sum is σ = 6854400. Its totient is φ = 1729728.

The previous prime is 3990919. The next prime is 3990929. The reversal of 3990922 is 2290993.

It is not an unprimeable number, because it can be changed into a prime (3990929) 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, 50479 + ... + 50557.

It is an arithmetic number, because the mean of its divisors is an integer number (214200).

Almost surely, 2^3990922 is an apocalyptic number.

3990922 is a deficient number, since it is larger than the sum of its proper divisors (2863478).

3990922 is a wasteful number, since it uses less digits than its factorization.

3990922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 3990922 is about 1997.7292108792. The cubic root of 3990922 is about 158.6199273468.

The spelling of 3990922 in words is "three million, nine hundred ninety thousand, nine hundred twenty-two".