395020290164 has 24 divisors (see below), whose sum is σ = 715291977960. Its totient is φ = 190654373504.

The previous prime is 395020290139. The next prime is 395020290199. The reversal of 395020290164 is 461092020593.

It can be written as a sum of positive squares in 4 ways, for example, as 70453084900 + 324567205264 = 265430^2 + 569708^2 .

It is a congruent number.

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, 93002 + ... + 893694.

It is an arithmetic number, because the mean of its divisors is an integer number (29803832415).

Almost surely, 2^395020290164 is an apocalyptic number.

It is an amenable number.

395020290164 is a deficient number, since it is larger than the sum of its proper divisors (320271687796).

395020290164 is a wasteful number, since it uses less digits than its factorization.

395020290164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804979 (or 804977 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 395020290164 in words is "three hundred ninety-five billion, twenty million, two hundred ninety thousand, one hundred sixty-four".