3990220806740 has 24 divisors (see below), whose sum is σ = 9576529936512. Its totient is φ = 1368075705120.

The previous prime is 3990220806721. The next prime is 3990220806811. The reversal of 3990220806740 is 476080220993.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14250788456 + ... + 14250788735.

It is an arithmetic number, because the mean of its divisors is an integer number (399022080688).

Almost surely, 2^{3990220806740} is an apocalyptic number.

It is an amenable number.

3990220806740 is an abundant number, since it is smaller than the sum of its proper divisors (5586309129772).

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

3990220806740 is a wasteful number, since it uses less digits than its factorization.

3990220806740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28501577207 (or 28501577205 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 3990220806740 in words is "three trillion, nine hundred ninety billion, two hundred twenty million, eight hundred six thousand, seven hundred forty".