394606440492 has 72 divisors (see below), whose sum is σ = 1012316683056. Its totient is φ = 119547648000.

The previous prime is 394606440451. The next prime is 394606440499. The reversal of 394606440492 is 294044606493.

It is not an unprimeable number, because it can be changed into a prime (394606440499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6125892 + ... + 6189972.

Almost surely, 2^394606440492 is an apocalyptic number.

It is an amenable number.

394606440492 is an abundant number, since it is smaller than the sum of its proper divisors (617710242564).

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

394606440492 is a wasteful number, since it uses less digits than its factorization.

394606440492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68351 (or 68338 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 394606440492 in words is "three hundred ninety-four billion, six hundred six million, four hundred forty thousand, four hundred ninety-two".