23540222 has 8 divisors (see below), whose sum is σ = 36449472. Its totient is φ = 11390400.

The previous prime is 23540219. The next prime is 23540227. The reversal of 23540222 is 22204532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23540194 and 23540203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23540227) 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, 189779 + ... + 189902.

It is an arithmetic number, because the mean of its divisors is an integer number (4556184).

Almost surely, 2^23540222 is an apocalyptic number.

23540222 is a deficient number, since it is larger than the sum of its proper divisors (12909250).

23540222 is a wasteful number, since it uses less digits than its factorization.

23540222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379714.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 23540222 is about 4851.8266663186. The cubic root of 23540222 is about 286.5960396286.

Adding to 23540222 its reverse (22204532), we get a palindrome (45744754).

The spelling of 23540222 in words is "twenty-three million, five hundred forty thousand, two hundred twenty-two".