22650231 has 8 divisors (see below), whose sum is σ = 30223984. Its totient is φ = 15088320.

The previous prime is 22650227. The next prime is 22650241. The reversal of 22650231 is 13205622.

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

It is not a de Polignac number, because 22650231 - 2² = 22650227 is a prime.

It is a super-2 number, since 2×22650231² = 1026065928706722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22650198 and 22650207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22650241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3555 + ... + 7611.

It is an arithmetic number, because the mean of its divisors is an integer number (3777998).

Almost surely, 2^22650231 is an apocalyptic number.

22650231 is a deficient number, since it is larger than the sum of its proper divisors (7573753).

22650231 is a wasteful number, since it uses less digits than its factorization.

22650231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 22650231 is about 4759.2258824309. The cubic root of 22650231 is about 282.9377388869.

Adding to 22650231 its reverse (13205622), we get a palindrome (35855853).

The spelling of 22650231 in words is "twenty-two million, six hundred fifty thousand, two hundred thirty-one".