396448386 has 64 divisors (see below), whose sum is σ = 840499200. Its totient is φ = 124488000.

The previous prime is 396448379. The next prime is 396448387. The reversal of 396448386 is 683844693.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (396448387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2075551 + ... + 2075741.

It is an arithmetic number, because the mean of its divisors is an integer number (13132800).

Almost surely, 2^396448386 is an apocalyptic number.

396448386 is an abundant number, since it is smaller than the sum of its proper divisors (444050814).

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

396448386 is a wasteful number, since it uses less digits than its factorization.

396448386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its digits is 2985984, while the sum is 51.

The square root of 396448386 is about 19911.0116769591. The cubic root of 396448386 is about 734.6191038609.

The spelling of 396448386 in words is "three hundred ninety-six million, four hundred forty-eight thousand, three hundred eighty-six".