394870476 has 192 divisors, whose sum is σ = 1257209856. Its totient is φ = 93139200.

The previous prime is 394870451. The next prime is 394870481. The reversal of 394870476 is 674078493.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 852621 + ... + 853083.

It is an arithmetic number, because the mean of its divisors is an integer number (6547968).

Almost surely, 2^394870476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394870476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628604928).

394870476 is an abundant number, since it is smaller than the sum of its proper divisors (862339380).

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

394870476 is a wasteful number, since it uses less digits than its factorization.

394870476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 394870476 is about 19871.3481173271. The cubic root of 394870476 is about 733.6431852229.

The spelling of 394870476 in words is "three hundred ninety-four million, eight hundred seventy thousand, four hundred seventy-six".