394556944 has 20 divisors (see below), whose sum is σ = 809422524. Its totient is φ = 185673728.

The previous prime is 394556923. The next prime is 394556951. The reversal of 394556944 is 449655493.

It can be written as a sum of positive squares in 2 ways, for example, as 366339600 + 28217344 = 19140^2 + 5312^2 .

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, 725017 + ... + 725560.

Almost surely, 2^394556944 is an apocalyptic number.

394556944 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

394556944 is an abundant number, since it is smaller than the sum of its proper divisors (414865580).

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

394556944 is a wasteful number, since it uses less digits than its factorization.

394556944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450602 (or 1450596 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 49.

The square root of 394556944 is about 19863.4575036674. The cubic root of 394556944 is about 733.4489599130.

The spelling of 394556944 in words is "three hundred ninety-four million, five hundred fifty-six thousand, nine hundred forty-four".