23492218 has 4 divisors (see below), whose sum is σ = 35238330. Its totient is φ = 11746108.

The previous prime is 23492213. The next prime is 23492239. The reversal of 23492218 is 81229432.

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

It can be written as a sum of positive squares in only one way, i.e., 19740249 + 3751969 = 4443^2 + 1937^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 23492218.

It is not an unprimeable number, because it can be changed into a prime (23492213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5873053 + ... + 5873056.

Almost surely, 2^23492218 is an apocalyptic number.

23492218 is a deficient number, since it is larger than the sum of its proper divisors (11746112).

23492218 is a wasteful number, since it uses less digits than its factorization.

23492218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746111.

The product of its digits is 6912, while the sum is 31.

The square root of 23492218 is about 4846.8771389421. The cubic root of 23492218 is about 286.4010950121.

The spelling of 23492218 in words is "twenty-three million, four hundred ninety-two thousand, two hundred eighteen".