404172959 has 8 divisors (see below), whose sum is σ = 426954240. Its totient is φ = 381542616.

The previous prime is 404172949. The next prime is 404172973. The reversal of 404172959 is 959271404.

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

It is a cyclic number.

It is not a de Polignac number, because 404172959 - 2¹⁶ = 404107423 is a prime.

It is a super-4 number, since 4×404172959⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404172949) 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, 32207 + ... + 42960.

It is an arithmetic number, because the mean of its divisors is an integer number (53369280).

Almost surely, 2^404172959 is an apocalyptic number.

404172959 is a deficient number, since it is larger than the sum of its proper divisors (22781281).

404172959 is a wasteful number, since it uses less digits than its factorization.

404172959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75469.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 404172959 is about 20104.0532977805. The cubic root of 404172959 is about 739.3596597172.

The spelling of 404172959 in words is "four hundred four million, one hundred seventy-two thousand, nine hundred fifty-nine".