395903974912 has 60 divisors (see below), whose sum is σ = 809860609800. Its totient is φ = 193347990528.

The previous prime is 395903974903. The next prime is 395903974913. The reversal of 395903974912 is 219479309593.

It is a super-2 number, since 2×395903974912² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395903974913) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 737589 + ... + 1155787.

It is an arithmetic number, because the mean of its divisors is an integer number (13497676830).

Almost surely, 2^395903974912 is an apocalyptic number.

395903974912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395903974912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404930304900).

395903974912 is an abundant number, since it is smaller than the sum of its proper divisors (413956634888).

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

395903974912 is an frugal number, since it uses more digits than its factorization.

395903974912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418303 (or 418244 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 61.

The spelling of 395903974912 in words is "three hundred ninety-five billion, nine hundred three million, nine hundred seventy-four thousand, nine hundred twelve".