396079239894 has 64 divisors (see below), whose sum is σ = 882158204928. Its totient is φ = 117732268800.

The previous prime is 396079239869. The next prime is 396079239911. The reversal of 396079239894 is 498932970693.

It is a super-2 number, since 2×396079239894² (a number of 24 digits) contains 22 as substring.

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, 1237242 + ... + 1524114.

It is an arithmetic number, because the mean of its divisors is an integer number (13783721952).

Almost surely, 2^396079239894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396079239894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441079102464).

396079239894 is an abundant number, since it is smaller than the sum of its proper divisors (486078965034).

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

396079239894 is a wasteful number, since it uses less digits than its factorization.

396079239894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287493.

The product of its (nonzero) digits is 158723712, while the sum is 69.

The spelling of 396079239894 in words is "three hundred ninety-six billion, seventy-nine million, two hundred thirty-nine thousand, eight hundred ninety-four".