394320142044032 has 256 divisors, whose sum is σ = 847302390604800. Its totient is φ = 182203241472000.

The previous prime is 394320142043939. The next prime is 394320142044041. The reversal of 394320142044032 is 230440241023493.

It is a congruent number.

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, 45111555182 + ... + 45111563922.

It is an arithmetic number, because the mean of its divisors is an integer number (3309774963300).

Almost surely, 2^{394320142044032} is an apocalyptic number.

394320142044032 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 394320142044032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423651195302400).

394320142044032 is an abundant number, since it is smaller than the sum of its proper divisors (452982248560768).

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

394320142044032 is a wasteful number, since it uses less digits than its factorization.

394320142044032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10085 (or 10073 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 394320142044032 in words is "three hundred ninety-four trillion, three hundred twenty billion, one hundred forty-two million, forty-four thousand, thirty-two".