395042179920 has 320 divisors, whose sum is σ = 1351263513600. Its totient is φ = 95099719680.

The previous prime is 395042179859. The next prime is 395042179949. The reversal of 395042179920 is 29971240593.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8014711 + ... + 8063849.

It is an arithmetic number, because the mean of its divisors is an integer number (4222698480).

Almost surely, 2^395042179920 is an apocalyptic number.

395042179920 is a gapful number since it is divisible by the number (30) 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 395042179920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675631756800).

395042179920 is an abundant number, since it is smaller than the sum of its proper divisors (956221333680).

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

395042179920 is a wasteful number, since it uses less digits than its factorization.

395042179920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49258 (or 49252 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 395042179920 in words is "three hundred ninety-five billion, forty-two million, one hundred seventy-nine thousand, nine hundred twenty".