3990599020 has 96 divisors (see below), whose sum is σ = 8708466816. Its totient is φ = 1535385600.

The previous prime is 3990598991. The next prime is 3990599021. The reversal of 3990599020 is 209950993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3990599021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14201280 + ... + 14201560.

It is an arithmetic number, because the mean of its divisors is an integer number (90713196).

Almost surely, 2^3990599020 is an apocalyptic number.

It is an amenable number.

3990599020 is an abundant number, since it is smaller than the sum of its proper divisors (4717867796).

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

3990599020 is a wasteful number, since it uses less digits than its factorization.

3990599020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 3990599020 is about 63171.1882110824. The cubic root of 3990599020 is about 1586.1564826490.

The spelling of 3990599020 in words is "three billion, nine hundred ninety million, five hundred ninety-nine thousand, twenty".