396542885 has 16 divisors (see below), whose sum is σ = 497836800. Its totient is φ = 302649600.

The previous prime is 396542879. The next prime is 396542899. The reversal of 396542885 is 588245693.

It is not a de Polignac number, because 396542885 - 2⁴ = 396542869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41816 + ... + 50414.

It is an arithmetic number, because the mean of its divisors is an integer number (31114800).

Almost surely, 2^396542885 is an apocalyptic number.

It is an amenable number.

396542885 is a deficient number, since it is larger than the sum of its proper divisors (101293915).

396542885 is a wasteful number, since it uses less digits than its factorization.

396542885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9028.

The product of its digits is 2073600, while the sum is 50.

The square root of 396542885 is about 19913.3845691786. The cubic root of 396542885 is about 734.6774681256.

The spelling of 396542885 in words is "three hundred ninety-six million, five hundred forty-two thousand, eight hundred eighty-five".