222290623 has 4 divisors (see below), whose sum is σ = 235366560. Its totient is φ = 209214688.

The previous prime is 222290617. The next prime is 222290659. The reversal of 222290623 is 326092222.

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

It is a cyclic number.

It is not a de Polignac number, because 222290623 - 2⁵ = 222290591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222290591 and 222290600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222290023) 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, 6537943 + ... + 6537976.

It is an arithmetic number, because the mean of its divisors is an integer number (58841640).

Almost surely, 2^222290623 is an apocalyptic number.

222290623 is a deficient number, since it is larger than the sum of its proper divisors (13075937).

222290623 is a wasteful number, since it uses less digits than its factorization.

222290623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13075936.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 222290623 is about 14909.4139053150. The cubic root of 222290623 is about 605.7690041331.

The spelling of 222290623 in words is "two hundred twenty-two million, two hundred ninety thousand, six hundred twenty-three".