395538997920 has 192 divisors, whose sum is σ = 1388136185856. Its totient is φ = 93848007680.

The previous prime is 395538997907. The next prime is 395538997937. The reversal of 395538997920 is 29799835593.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548784 + ... + 1045103.

It is an arithmetic number, because the mean of its divisors is an integer number (7229875968).

Almost surely, 2^395538997920 is an apocalyptic number.

395538997920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

395538997920 is an abundant number, since it is smaller than the sum of its proper divisors (992597187936).

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

395538997920 is a wasteful number, since it uses less digits than its factorization.

395538997920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593963 (or 1593955 counting only the distinct ones).

The product of its (nonzero) digits is 165337200, while the sum is 69.

The spelling of 395538997920 in words is "three hundred ninety-five billion, five hundred thirty-eight million, nine hundred ninety-seven thousand, nine hundred twenty".