393722416 has 20 divisors (see below), whose sum is σ = 763209832. Its totient is φ = 196765056.

The previous prime is 393722401. The next prime is 393722429. The reversal of 393722416 is 614227393.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37171 + ... + 46573.

Almost surely, 2^393722416 is an apocalyptic number.

It is an amenable number.

393722416 is a deficient number, since it is larger than the sum of its proper divisors (369487416).

393722416 is a wasteful number, since it uses less digits than its factorization.

393722416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12028 (or 12022 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 393722416 is about 19842.4397693429. The cubic root of 393722416 is about 732.9314885649.

The spelling of 393722416 in words is "three hundred ninety-three million, seven hundred twenty-two thousand, four hundred sixteen".