394470944 has 96 divisors (see below), whose sum is σ = 914457600. Its totient is φ = 164017152.

The previous prime is 394470917. The next prime is 394470971. The reversal of 394470944 is 449074493.

It is an interprime number because it is at equal distance from previous prime (394470917) and next prime (394470971).

It is a super-2 number, since 2×394470944² = 311214651320502272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 394470895 and 394470904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768817 + ... + 1769039.

It is an arithmetic number, because the mean of its divisors is an integer number (9525600).

Almost surely, 2^394470944 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 394470944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457228800).

394470944 is an abundant number, since it is smaller than the sum of its proper divisors (519986656).

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

394470944 is a wasteful number, since it uses less digits than its factorization.

394470944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 394470944 is about 19861.2926064745. The cubic root of 394470944 is about 733.3956670614.

The spelling of 394470944 in words is "three hundred ninety-four million, four hundred seventy thousand, nine hundred forty-four".