404661959 has 8 divisors (see below), whose sum is σ = 438074112. Its totient is φ = 371576160.

The previous prime is 404661947. The next prime is 404661973. The reversal of 404661959 is 959166404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404661959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404660959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79004 + ... + 83969.

It is an arithmetic number, because the mean of its divisors is an integer number (54759264).

Almost surely, 2^404661959 is an apocalyptic number.

404661959 is a deficient number, since it is larger than the sum of its proper divisors (33412153).

404661959 is a wasteful number, since it uses less digits than its factorization.

404661959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163177.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 404661959 is about 20116.2113480645. The cubic root of 404661959 is about 739.6577178911.

The spelling of 404661959 in words is "four hundred four million, six hundred sixty-one thousand, nine hundred fifty-nine".