394523879046 has 24 divisors (see below), whose sum is σ = 867300429912. Its totient is φ = 119552690400.

The previous prime is 394523879041. The next prime is 394523879083. The reversal of 394523879046 is 640978325493.

It is a super-2 number, since 2×394523879046² (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 (394523879041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271709935 + ... + 271711386.

It is an arithmetic number, because the mean of its divisors is an integer number (36137517913).

Almost surely, 2^394523879046 is an apocalyptic number.

394523879046 is an abundant number, since it is smaller than the sum of its proper divisors (472776550866).

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

394523879046 is a wasteful number, since it uses less digits than its factorization.

394523879046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543421348 (or 543421337 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 394523879046 in words is "three hundred ninety-four billion, five hundred twenty-three million, eight hundred seventy-nine thousand, forty-six".