404504251268 has 72 divisors (see below), whose sum is σ = 790479306456. Its totient is φ = 179939750400.

The previous prime is 404504251267. The next prime is 404504251297. The reversal of 404504251268 is 862152405404.

It can be written as a sum of positive squares in 4 ways, for example, as 7223640064 + 397280611204 = 84992^2 + 630302^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (404504251267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14673578 + ... + 14701118.

Almost surely, 2^404504251268 is an apocalyptic number.

It is an amenable number.

404504251268 is a deficient number, since it is larger than the sum of its proper divisors (385975055188).

404504251268 is a wasteful number, since it uses less digits than its factorization.

404504251268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27765 (or 27680 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 404504251268 in words is "four hundred four billion, five hundred four million, two hundred fifty-one thousand, two hundred sixty-eight".