396824904 has 96 divisors (see below), whose sum is σ = 1231139520. Its totient is φ = 113113728.

The previous prime is 396824903. The next prime is 396824929. The reversal of 396824904 is 409428693.

It is a self number, because there is not a number n which added to its sum of digits gives 396824904.

It is not an unprimeable number, because it can be changed into a prime (396824903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340627 + ... + 341789.

It is an arithmetic number, because the mean of its divisors is an integer number (12824370).

Almost surely, 2^396824904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396824904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615569760).

396824904 is an abundant number, since it is smaller than the sum of its proper divisors (834314616).

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

396824904 is a wasteful number, since it uses less digits than its factorization.

396824904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 396824904 is about 19920.4644524168. The cubic root of 396824904 is about 734.8515929714.

The spelling of 396824904 in words is "three hundred ninety-six million, eight hundred twenty-four thousand, nine hundred four".