404221518792 has 192 divisors, whose sum is σ = 1390870440960. Its totient is φ = 103168857600.

The previous prime is 404221518773. The next prime is 404221518793. The reversal of 404221518792 is 297815122404.

404221518792 is a `hidden beast` number, since 4 + 0 + 42 + 2 + 1 + 518 + 7 + 92 = 666.

It is a super-2 number, since 2×404221518792² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (404221518793) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 791959 + ... + 1198182.

It is an arithmetic number, because the mean of its divisors is an integer number (7244116880).

Almost surely, 2^404221518792 is an apocalyptic number.

404221518792 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

404221518792 is an abundant number, since it is smaller than the sum of its proper divisors (986648922168).

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

404221518792 is a wasteful number, since it uses less digits than its factorization.

404221518792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990204 (or 1990197 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 404221518792 in words is "four hundred four billion, two hundred twenty-one million, five hundred eighteen thousand, seven hundred ninety-two".