402173 has 8 divisors (see below), whose sum is σ = 431520. Its totient is φ = 373680.

The previous prime is 402139. The next prime is 402197. The reversal of 402173 is 371204.

It is a happy number.

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 402173 - 2⁸ = 401917 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 (402133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 1332.

It is an arithmetic number, because the mean of its divisors is an integer number (53940).

2⁴⁰²¹⁷³ is an apocalyptic number.

It is an amenable number.

402173 is a deficient number, since it is larger than the sum of its proper divisors (29347).

402173 is a wasteful number, since it uses less digits than its factorization.

402173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 402173 is about 634.1711125556. The cubic root of 402173 is about 73.8138124327.

Adding to 402173 its reverse (371204), we get a palindrome (773377).

It can be divided in two parts, 402 and 173, that added together give a palindrome (575).

The spelling of 402173 in words is "four hundred two thousand, one hundred seventy-three", and thus it is an iban number.