22556469 has 8 divisors (see below), whose sum is σ = 32388832. Its totient is φ = 13880880.

The previous prime is 22556459. The next prime is 22556473. The reversal of 22556469 is 96465522.

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

It is not a de Polignac number, because 22556469 - 2⁷ = 22556341 is a prime.

It is a super-2 number, since 2×22556469² = 1017588587495922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 578371 = 22556469 / (2 + 2 + 5 + 5 + 6 + 4 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22556419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289147 + ... + 289224.

It is an arithmetic number, because the mean of its divisors is an integer number (4048604).

Almost surely, 2^22556469 is an apocalyptic number.

It is an amenable number.

22556469 is a deficient number, since it is larger than the sum of its proper divisors (9832363).

22556469 is a wasteful number, since it uses less digits than its factorization.

22556469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578387.

The product of its digits is 129600, while the sum is 39.

The square root of 22556469 is about 4749.3651154654. The cubic root of 22556469 is about 282.5467863096.

The spelling of 22556469 in words is "twenty-two million, five hundred fifty-six thousand, four hundred sixty-nine".