396520386 has 32 divisors (see below), whose sum is σ = 842607360. Its totient is φ = 124042896.

The previous prime is 396520381. The next prime is 396520387. The reversal of 396520386 is 683025693.

It is not an unprimeable number, because it can be changed into a prime (396520381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4056 + ... + 28451.

It is an arithmetic number, because the mean of its divisors is an integer number (26331480).

Almost surely, 2^396520386 is an apocalyptic number.

396520386 is an abundant number, since it is smaller than the sum of its proper divisors (446086974).

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

396520386 is a wasteful number, since it uses less digits than its factorization.

396520386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32638.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 396520386 is about 19912.8196396191. The cubic root of 396520386 is about 734.6635731837.

The spelling of 396520386 in words is "three hundred ninety-six million, five hundred twenty thousand, three hundred eighty-six".