3990074 has 16 divisors (see below), whose sum is σ = 6562080. Its totient is φ = 1804560.

The previous prime is 3990073. The next prime is 3990083. The reversal of 3990074 is 4700993.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3990074.

It is not an unprimeable number, because it can be changed into a prime (3990073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6137 + ... + 6755.

It is an arithmetic number, because the mean of its divisors is an integer number (410130).

Almost surely, 2^3990074 is an apocalyptic number.

3990074 is a deficient number, since it is larger than the sum of its proper divisors (2572006).

3990074 is a wasteful number, since it uses less digits than its factorization.

3990074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3990074 is about 1997.5169586264. The cubic root of 3990074 is about 158.6086919124.

The spelling of 3990074 in words is "three million, nine hundred ninety thousand, seventy-four".