3990384674 has 16 divisors (see below), whose sum is σ = 6302702880. Its totient is φ = 1889553600.

The previous prime is 3990384637. The next prime is 3990384689. The reversal of 3990384674 is 4764830993.

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, 110474 + ... + 142074.

It is an arithmetic number, because the mean of its divisors is an integer number (393918930).

Almost surely, 2^3990384674 is an apocalyptic number.

3990384674 is a deficient number, since it is larger than the sum of its proper divisors (2312318206).

3990384674 is a wasteful number, since it uses less digits than its factorization.

3990384674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34945.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 3990384674 is about 63169.4916395565. The cubic root of 3990384674 is about 1586.1280832046.

The spelling of 3990384674 in words is "three billion, nine hundred ninety million, three hundred eighty-four thousand, six hundred seventy-four".