396393724 has 24 divisors (see below), whose sum is σ = 706785408. Its totient is φ = 194487600.

The previous prime is 396393719. The next prime is 396393727. The reversal of 396393724 is 427393693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396393727) 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 7 ways as a sum of consecutive naturals, for example, 46179 + ... + 54085.

It is an arithmetic number, because the mean of its divisors is an integer number (29449392).

Almost surely, 2^396393724 is an apocalyptic number.

It is an amenable number.

396393724 is a deficient number, since it is larger than the sum of its proper divisors (310391684).

396393724 is a wasteful number, since it uses less digits than its factorization.

396393724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8145 (or 8143 counting only the distinct ones).

The product of its digits is 734832, while the sum is 46.

The square root of 396393724 is about 19909.6389721160. The cubic root of 396393724 is about 734.5853394025.

The spelling of 396393724 in words is "three hundred ninety-six million, three hundred ninety-three thousand, seven hundred twenty-four".