404401339 has 4 divisors (see below), whose sum is σ = 425685640. Its totient is φ = 383117040.

The previous prime is 404401313. The next prime is 404401343. The reversal of 404401339 is 933104404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404401339 - 2⁹ = 404400827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404408339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10642122 + ... + 10642159.

It is an arithmetic number, because the mean of its divisors is an integer number (106421410).

Almost surely, 2^404401339 is an apocalyptic number.

404401339 is a deficient number, since it is larger than the sum of its proper divisors (21284301).

404401339 is a wasteful number, since it uses less digits than its factorization.

404401339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21284300.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 404401339 is about 20109.7324447642. The cubic root of 404401339 is about 739.4988931494.

The spelling of 404401339 in words is "four hundred four million, four hundred one thousand, three hundred thirty-nine".