404159 has 4 divisors (see below), whose sum is σ = 461904. Its totient is φ = 346416.

The previous prime is 404123. The next prime is 404161. The reversal of 404159 is 951404.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-404159 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 (404119) 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, 28862 + ... + 28875.

It is an arithmetic number, because the mean of its divisors is an integer number (115476).

2⁴⁰⁴¹⁵⁹ is an apocalyptic number.

404159 is a deficient number, since it is larger than the sum of its proper divisors (57745).

404159 is an equidigital number, since it uses as much as digits as its factorization.

404159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57744.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 404159 is about 635.7350076880. The cubic root of 404159 is about 73.9351147816.

The spelling of 404159 in words is "four hundred four thousand, one hundred fifty-nine".