22426237 has 8 divisors (see below), whose sum is σ = 23369472. Its totient is φ = 21496800.

The previous prime is 22426231. The next prime is 22426241. The reversal of 22426237 is 73262422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22426237 is a prime.

It is a super-2 number, since 2×22426237² = 1005872211960338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22426231) 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, 64 + ... + 6697.

It is an arithmetic number, because the mean of its divisors is an integer number (2921184).

Almost surely, 2^22426237 is an apocalyptic number.

It is an amenable number.

22426237 is a deficient number, since it is larger than the sum of its proper divisors (943235).

22426237 is a wasteful number, since it uses less digits than its factorization.

22426237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899.

The product of its digits is 8064, while the sum is 28.

The square root of 22426237 is about 4735.6348043319. The cubic root of 22426237 is about 282.0019658499.

Adding to 22426237 its reverse (73262422), we get a palindrome (95688659).

The spelling of 22426237 in words is "twenty-two million, four hundred twenty-six thousand, two hundred thirty-seven".