394378725 has 96 divisors (see below), whose sum is σ = 753424000. Its totient is φ = 180403200.

The previous prime is 394378717. The next prime is 394378727. The reversal of 394378725 is 527873493.

It is not a de Polignac number, because 394378725 - 2³ = 394378717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394378727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1129851 + ... + 1130199.

Almost surely, 2^394378725 is an apocalyptic number.

It is an amenable number.

394378725 is a deficient number, since it is larger than the sum of its proper divisors (359045275).

394378725 is a wasteful number, since it uses less digits than its factorization.

394378725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455 (or 450 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 394378725 is about 19858.9708947871. The cubic root of 394378725 is about 733.3385117862.

The spelling of 394378725 in words is "three hundred ninety-four million, three hundred seventy-eight thousand, seven hundred twenty-five".