396193520 has 40 divisors (see below), whose sum is σ = 922363584. Its totient is φ = 158268672.

The previous prime is 396193519. The next prime is 396193531. The reversal of 396193520 is 25391693.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67337 + ... + 72983.

Almost surely, 2^396193520 is an apocalyptic number.

It is an amenable number.

396193520 is an abundant number, since it is smaller than the sum of its proper divisors (526170064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396193520 is a wasteful number, since it uses less digits than its factorization.

396193520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537 (or 6531 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 396193520 is about 19904.6105211833. The cubic root of 396193520 is about 734.4616478296.

The spelling of 396193520 in words is "three hundred ninety-six million, one hundred ninety-three thousand, five hundred twenty".