23502222 has 12 divisors (see below), whose sum is σ = 50921520. Its totient is φ = 7834068.

The previous prime is 23502191. The next prime is 23502233. The reversal of 23502222 is 22220532.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1305679 = 23502222 / (2 + 3 + 5 + 0 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 23502195 and 23502204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 652822 + ... + 652857.

It is an arithmetic number, because the mean of its divisors is an integer number (4243460).

Almost surely, 2^23502222 is an apocalyptic number.

23502222 is an abundant number, since it is smaller than the sum of its proper divisors (27419298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23502222 is a wasteful number, since it uses less digits than its factorization.

23502222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305687 (or 1305684 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23502222 is about 4847.9090338000. The cubic root of 23502222 is about 286.4417432237.

Adding to 23502222 its reverse (22220532), we get a palindrome (45722754).

The spelling of 23502222 in words is "twenty-three million, five hundred two thousand, two hundred twenty-two".