394762916 has 24 divisors (see below), whose sum is σ = 751246776. Its totient is φ = 180748800.

The previous prime is 394762913. The next prime is 394762931. The reversal of 394762916 is 619267493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110166016 + 284596900 = 10496^2 + 16870^2 .

It is not an unprimeable number, because it can be changed into a prime (394762913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75935 + ... + 80966.

It is an arithmetic number, because the mean of its divisors is an integer number (31301949).

Almost surely, 2^394762916 is an apocalyptic number.

It is an amenable number.

394762916 is a deficient number, since it is larger than the sum of its proper divisors (356483860).

394762916 is a wasteful number, since it uses less digits than its factorization.

394762916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156959 (or 156957 counting only the distinct ones).

The product of its digits is 489888, while the sum is 47.

The square root of 394762916 is about 19868.6415237681. The cubic root of 394762916 is about 733.5765660555.

The spelling of 394762916 in words is "three hundred ninety-four million, seven hundred sixty-two thousand, nine hundred sixteen".