404222023 has 4 divisors (see below), whose sum is σ = 404433288. Its totient is φ = 404010760.

The previous prime is 404221967. The next prime is 404222053. The reversal of 404222023 is 320222404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404222023 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 (404222053) 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, 102736 + ... + 106597.

It is an arithmetic number, because the mean of its divisors is an integer number (101108322).

Almost surely, 2^404222023 is an apocalyptic number.

404222023 is a deficient number, since it is larger than the sum of its proper divisors (211265).

404222023 is a wasteful number, since it uses less digits than its factorization.

404222023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211264.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 404222023 is about 20105.2735121908. The cubic root of 404222023 is about 739.3895763438.

Adding to 404222023 its reverse (320222404), we get a palindrome (724444427).

The spelling of 404222023 in words is "four hundred four million, two hundred twenty-two thousand, twenty-three".