222423451 has 8 divisors (see below), whose sum is σ = 229573440. Its totient is φ = 215386248.

The previous prime is 222423449. The next prime is 222423493. The reversal of 222423451 is 154324222.

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 222423451 - 2¹ = 222423449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222424451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24181 + ... + 32086.

It is an arithmetic number, because the mean of its divisors is an integer number (28696680).

Almost surely, 2^222423451 is an apocalyptic number.

222423451 is a deficient number, since it is larger than the sum of its proper divisors (7149989).

222423451 is an equidigital number, since it uses as much as digits as its factorization.

222423451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56393.

The product of its digits is 3840, while the sum is 25.

The square root of 222423451 is about 14913.8677411327. The cubic root of 222423451 is about 605.8896375976.

Adding to 222423451 its reverse (154324222), we get a palindrome (376747673).

The spelling of 222423451 in words is "two hundred twenty-two million, four hundred twenty-three thousand, four hundred fifty-one".