404104320 has 96 divisors (see below), whose sum is σ = 1395442620. Its totient is φ = 107759616.

The previous prime is 404104291. The next prime is 404104339. The reversal of 404104320 is 23401404.

It can be written as a sum of positive squares in 2 ways, for example, as 376981056 + 27123264 = 19416^2 + 5208^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 404104293 and 404104302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29319 + ... + 40838.

Almost surely, 2^404104320 is an apocalyptic number.

404104320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404104320 is an abundant number, since it is smaller than the sum of its proper divisors (991338300).

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

404104320 is a wasteful number, since it uses less digits than its factorization.

404104320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70182 (or 70167 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 404104320 is about 20102.3461317330. The cubic root of 404104320 is about 739.3178032300.

Adding to 404104320 its reverse (23401404), we get a palindrome (427505724).

The spelling of 404104320 in words is "four hundred four million, one hundred four thousand, three hundred twenty".