404270887329 has 21 divisors (see below), whose sum is σ = 606154793443. Its totient is φ = 269502480072.

The previous prime is 404270887303. The next prime is 404270887333. The reversal of 404270887329 is 923788072404.

It is a happy number.

The square root of 404270887329 is 635823.

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

404270887329 is a `hidden beast` number, since 40 + 4 + 270 + 8 + 8 + 7 + 329 = 666.

It can be written as a sum of positive squares in only one way, i.e., 308950929 + 403961936400 = 17577^2 + 635580^2 .

It is not a de Polignac number, because 404270887329 - 2⁵ = 404270887297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404270887399) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 17155447 + ... + 17178995.

Almost surely, 2^404270887329 is an apocalyptic number.

404270887329 is the 635823-rd square number.

404270887329 is the 317912-nd centered octagonal number.

It is an amenable number.

404270887329 is a deficient number, since it is larger than the sum of its proper divisors (201883906114).

404270887329 is an frugal number, since it uses more digits than its factorization.

404270887329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47116 (or 23552 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 404270887329 in words is "four hundred four billion, two hundred seventy million, eight hundred eighty-seven thousand, three hundred twenty-nine".