404122 has 4 divisors (see below), whose sum is σ = 606186. Its totient is φ = 202060.

The previous prime is 404119. The next prime is 404123. The reversal of 404122 is 221404.

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

It can be written as a sum of positive squares in only one way, i.e., 314721 + 89401 = 561^2 + 299^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (404123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101029 + ... + 101032.

2⁴⁰⁴¹²² is an apocalyptic number.

404122 is a deficient number, since it is larger than the sum of its proper divisors (202064).

404122 is a wasteful number, since it uses less digits than its factorization.

404122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202063.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 404122 is about 635.7059068469. The cubic root of 404122 is about 73.9328585057.

Adding to 404122 its reverse (221404), we get a palindrome (625526).

The spelling of 404122 in words is "four hundred four thousand, one hundred twenty-two", and thus it is an iban number.