22372666 has 8 divisors (see below), whose sum is σ = 33707520. Its totient is φ = 11136828.

The previous prime is 22372643. The next prime is 22372667. The reversal of 22372666 is 66627322.

22372666 is nontrivially palindromic in base 13.

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

It is not an unprimeable number, because it can be changed into a prime (22372667) 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, 24186 + ... + 25093.

It is an arithmetic number, because the mean of its divisors is an integer number (4213440).

Almost surely, 2^22372666 is an apocalyptic number.

22372666 is a deficient number, since it is larger than the sum of its proper divisors (11334854).

22372666 is a wasteful number, since it uses less digits than its factorization.

22372666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49508.

The product of its digits is 36288, while the sum is 34.

The square root of 22372666 is about 4729.9752642059. The cubic root of 22372666 is about 281.7772413835. Note that the first 3 decimals are identical.

Adding to 22372666 its reverse (66627322), we get a palindrome (88999988).

The spelling of 22372666 in words is "twenty-two million, three hundred seventy-two thousand, six hundred sixty-six".