23090222 has 4 divisors (see below), whose sum is σ = 34635336. Its totient is φ = 11545110.

The previous prime is 23090219. The next prime is 23090261. The reversal of 23090222 is 22209032.

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

It is a junction number, because it is equal to n+sod(n) for n = 23090194 and 23090203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772554 + ... + 5772557.

It is an arithmetic number, because the mean of its divisors is an integer number (8658834).

Almost surely, 2^23090222 is an apocalyptic number.

23090222 is a deficient number, since it is larger than the sum of its proper divisors (11545114).

23090222 is a wasteful number, since it uses less digits than its factorization.

23090222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11545113.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 23090222 is about 4805.2286105866. The cubic root of 23090222 is about 284.7580669730.

Adding to 23090222 its reverse (22209032), we get a palindrome (45299254).

The spelling of 23090222 in words is "twenty-three million, ninety thousand, two hundred twenty-two".