394625828 has 12 divisors (see below), whose sum is σ = 731218572. Its totient is φ = 185706240.

The previous prime is 394625827. The next prime is 394625849. The reversal of 394625828 is 828526493.

It can be written as a sum of positive squares in 2 ways, for example, as 166978084 + 227647744 = 12922^2 + 15088^2 .

It is not an unprimeable number, because it can be changed into a prime (394625827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2901593 + ... + 2901728.

It is an arithmetic number, because the mean of its divisors is an integer number (60934881).

Almost surely, 2^394625828 is an apocalyptic number.

It is an amenable number.

394625828 is a deficient number, since it is larger than the sum of its proper divisors (336592744).

394625828 is a wasteful number, since it uses less digits than its factorization.

394625828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5803342 (or 5803340 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 394625828 is about 19865.1913658037. The cubic root of 394625828 is about 733.4916406625.

The spelling of 394625828 in words is "three hundred ninety-four million, six hundred twenty-five thousand, eight hundred twenty-eight".