404092876489 has 9 divisors (see below), whose sum is σ = 426493040967. Its totient is φ = 382813388064.

The previous prime is 404092876433. The next prime is 404092876493. The reversal of 404092876489 is 984678290404.

The square root of 404092876489 is 635683.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 149277913225 + 254814963264 = 386365^2 + 504792^2 .

It is not a de Polignac number, because 404092876489 - 2⁷ = 404092876361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404092876409) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12061249 + ... + 12094705.

It is an arithmetic number, because the mean of its divisors is an integer number (47388115663).

Almost surely, 2^404092876489 is an apocalyptic number.

404092876489 is the 635683-rd square number.

404092876489 is the 317842-nd centered octagonal number.

It is an amenable number.

404092876489 is a deficient number, since it is larger than the sum of its proper divisors (22400164478).

404092876489 is an frugal number, since it uses more digits than its factorization.

404092876489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66952 (or 33476 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 404092876489 in words is "four hundred four billion, ninety-two million, eight hundred seventy-six thousand, four hundred eighty-nine".