394181064332 has 24 divisors (see below), whose sum is σ = 768538713600. Its totient is φ = 175361014160.

The previous prime is 394181064317. The next prime is 394181064337. The reversal of 394181064332 is 233460181493.

It is a super-2 number, since 2×394181064332² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (394181064337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95302832 + ... + 95306967.

It is an arithmetic number, because the mean of its divisors is an integer number (32022446400).

Almost surely, 2^394181064332 is an apocalyptic number.

It is an amenable number.

394181064332 is a deficient number, since it is larger than the sum of its proper divisors (374357649268).

394181064332 is a wasteful number, since it uses less digits than its factorization.

394181064332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190609861 (or 190609859 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 394181064332 in words is "three hundred ninety-four billion, one hundred eighty-one million, sixty-four thousand, three hundred thirty-two".