22104537 has 48 divisors (see below), whose sum is σ = 37920960. Its totient is φ = 11346048.

The previous prime is 22104529. The next prime is 22104553. The reversal of 22104537 is 73540122.

It is not a de Polignac number, because 22104537 - 2³ = 22104529 is a prime.

It is a super-2 number, since 2×22104537² = 977221111968738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22104517) 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, 82039 + ... + 82307.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^22104537 is an apocalyptic number.

It is an amenable number.

22104537 is a deficient number, since it is larger than the sum of its proper divisors (15816423).

22104537 is a wasteful number, since it uses less digits than its factorization.

22104537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 22104537 is about 4701.5462350167. The cubic root of 22104537 is about 280.6470452735.

Adding to 22104537 its reverse (73540122), we get a palindrome (95644659).

The spelling of 22104537 in words is "twenty-two million, one hundred four thousand, five hundred thirty-seven".