394480316526 has 8 divisors (see below), whose sum is σ = 788960633064. Its totient is φ = 131493438840.

The previous prime is 394480316521. The next prime is 394480316533. The reversal of 394480316526 is 625613084493.

It is a sphenic number, since it is the product of 3 distinct primes.

394480316526 is an admirable number.

It is a super-2 number, since 2×394480316526² (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 (394480316521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32873359705 + ... + 32873359716.

It is an arithmetic number, because the mean of its divisors is an integer number (98620079133).

Almost surely, 2^394480316526 is an apocalyptic number.

394480316526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

394480316526 is a wasteful number, since it uses less digits than its factorization.

394480316526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65746719426.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 394480316526 in words is "three hundred ninety-four billion, four hundred eighty million, three hundred sixteen thousand, five hundred twenty-six".