159404 has 12 divisors (see below), whose sum is σ = 318864. Its totient is φ = 68304.

The previous prime is 159403. The next prime is 159407. The reversal of 159404 is 404951.

It is a happy number.

159404 is an admirable number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 159404.

It is not an unprimeable number, because it can be changed into a prime (159403) 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, 2819 + ... + 2874.

It is an arithmetic number, because the mean of its divisors is an integer number (26572).

2¹⁵⁹⁴⁰⁴ is an apocalyptic number.

159404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

159404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159404 is a wasteful number, since it uses less digits than its factorization.

159404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704 (or 5702 counting only the distinct ones).

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

The square root of 159404 is about 399.2543049236. The cubic root of 159404 is about 54.2208604225.

The spelling of 159404 in words is "one hundred fifty-nine thousand, four hundred four".