22413237 has 48 divisors (see below), whose sum is σ = 38610432. Its totient is φ = 11434080.

The previous prime is 22413233. The next prime is 22413239. The reversal of 22413237 is 73231422.

It is not a de Polignac number, because 22413237 - 2² = 22413233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22413233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134128 + ... + 134294.

It is an arithmetic number, because the mean of its divisors is an integer number (804384).

Almost surely, 2^22413237 is an apocalyptic number.

It is an amenable number.

22413237 is a deficient number, since it is larger than the sum of its proper divisors (16197195).

22413237 is a wasteful number, since it uses less digits than its factorization.

22413237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 271 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 22413237 is about 4734.2620333057. The cubic root of 22413237 is about 281.9474651898.

Adding to 22413237 its reverse (73231422), we get a palindrome (95644659).

The spelling of 22413237 in words is "twenty-two million, four hundred thirteen thousand, two hundred thirty-seven".