394374436 has 24 divisors (see below), whose sum is σ = 714067200. Its totient is φ = 190384800.

The previous prime is 394374389. The next prime is 394374437. The reversal of 394374436 is 634473493.

It is a junction number, because it is equal to n+sod(n) for n = 394374392 and 394374401.

It is not an unprimeable number, because it can be changed into a prime (394374437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53715 + ... + 60613.

It is an arithmetic number, because the mean of its divisors is an integer number (29752800).

Almost surely, 2^394374436 is an apocalyptic number.

It is an amenable number.

394374436 is a deficient number, since it is larger than the sum of its proper divisors (319692764).

394374436 is a wasteful number, since it uses less digits than its factorization.

394374436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395 (or 7393 counting only the distinct ones).

The product of its digits is 653184, while the sum is 43.

The square root of 394374436 is about 19858.8629080318. The cubic root of 394374436 is about 733.3358533430.

The spelling of 394374436 in words is "three hundred ninety-four million, three hundred seventy-four thousand, four hundred thirty-six".