170404 has 24 divisors (see below), whose sum is σ = 335160. Its totient is φ = 75264.

The previous prime is 170393. The next prime is 170413. The reversal of 170404 is 404071.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 168100 = 48^2 + 410^2 .

It is an unprimeable number.

170404 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (13965).

2¹⁷⁰⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

170404 is a deficient number, since it is larger than the sum of its proper divisors (164756).

170404 is a wasteful number, since it uses less digits than its factorization.

170404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 170404 is about 412.8001937984. The cubic root of 170404 is about 55.4404306344.

Adding to 170404 its reverse (404071), we get a palindrome (574475).

The spelling of 170404 in words is "one hundred seventy thousand, four hundred four", and thus it is an iban number.