394857452 has 12 divisors (see below), whose sum is σ = 753818856. Its totient is φ = 179480640.

The previous prime is 394857413. The next prime is 394857461. The reversal of 394857452 is 254758493.

It is a junction number, because it is equal to n+sod(n) for n = 394857397 and 394857406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4486973 + ... + 4487060.

It is an arithmetic number, because the mean of its divisors is an integer number (62818238).

Almost surely, 2^394857452 is an apocalyptic number.

It is an amenable number.

394857452 is a deficient number, since it is larger than the sum of its proper divisors (358961404).

394857452 is a wasteful number, since it uses less digits than its factorization.

394857452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974048 (or 8974046 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 394857452 is about 19871.0204066122. The cubic root of 394857452 is about 733.6351192245.

The spelling of 394857452 in words is "three hundred ninety-four million, eight hundred fifty-seven thousand, four hundred fifty-two".