404672827321 has 27 divisors (see below), whose sum is σ = 496925635941. Its totient is φ = 328537803384.

The previous prime is 404672827313. The next prime is 404672827327. The reversal of 404672827321 is 123728276404.

The square root of 404672827321 is 636139.

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

It is not a de Polignac number, because 404672827321 - 2³ = 404672827313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404672827327) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 84604096 + ... + 84608878.

It is an arithmetic number, because the mean of its divisors is an integer number (18404653183).

Almost surely, 2^404672827321 is an apocalyptic number.

404672827321 is the 636139-th square number.

404672827321 is the 318070-th centered octagonal number.

It is an amenable number.

404672827321 is a deficient number, since it is larger than the sum of its proper divisors (92252808620).

404672827321 is an frugal number, since it uses more digits than its factorization.

404672827321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9618 (or 4809 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 404672827321 in words is "four hundred four billion, six hundred seventy-two million, eight hundred twenty-seven thousand, three hundred twenty-one".