23404222 has 4 divisors (see below), whose sum is σ = 35106336. Its totient is φ = 11702110.

The previous prime is 23404211. The next prime is 23404229. The reversal of 23404222 is 22240432.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23404222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5851054 + ... + 5851057.

It is an arithmetic number, because the mean of its divisors is an integer number (8776584).

Almost surely, 2^23404222 is an apocalyptic number.

23404222 is a deficient number, since it is larger than the sum of its proper divisors (11702114).

23404222 is a wasteful number, since it uses less digits than its factorization.

23404222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11702113.

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

The square root of 23404222 is about 4837.7910248377. The cubic root of 23404222 is about 286.0430518593.

Adding to 23404222 its reverse (22240432), we get a palindrome (45644654).

The spelling of 23404222 in words is "twenty-three million, four hundred four thousand, two hundred twenty-two".