22215469 has 4 divisors (see below), whose sum is σ = 22226400. Its totient is φ = 22204540.

The previous prime is 22215409. The next prime is 22215491. The reversal of 22215469 is 96451222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22215469 - 2⁷ = 22215341 is a prime.

It is a super-2 number, since 2×22215469² = 987054125779922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22215469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22215409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1417 + ... + 6814.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^22215469 is an apocalyptic number.

It is an amenable number.

22215469 is a deficient number, since it is larger than the sum of its proper divisors (10931).

22215469 is an equidigital number, since it uses as much as digits as its factorization.

22215469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10930.

The product of its digits is 8640, while the sum is 31.

The square root of 22215469 is about 4713.3288660988. The cubic root of 22215469 is about 281.1157394408.

The spelling of 22215469 in words is "twenty-two million, two hundred fifteen thousand, four hundred sixty-nine".