222240423 has 8 divisors (see below), whose sum is σ = 296397936. Its totient is φ = 148121600.

The previous prime is 222240419. The next prime is 222240443. The reversal of 222240423 is 324042222.

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 222240423 - 2² = 222240419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222240423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222240413) 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, 8743 + ... + 22823.

It is an arithmetic number, because the mean of its divisors is an integer number (37049742).

Almost surely, 2^222240423 is an apocalyptic number.

222240423 is a deficient number, since it is larger than the sum of its proper divisors (74157513).

222240423 is a wasteful number, since it uses less digits than its factorization.

222240423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19345.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 222240423 is about 14907.7303101445. The cubic root of 222240423 is about 605.7234003300.

Adding to 222240423 its reverse (324042222), we get a palindrome (546282645).

The spelling of 222240423 in words is "two hundred twenty-two million, two hundred forty thousand, four hundred twenty-three".