22242465 has 32 divisors (see below), whose sum is σ = 45192960. Its totient is φ = 10167552.

The previous prime is 22242461. The next prime is 22242503. The reversal of 22242465 is 56424222.

It is a happy number.

It is not a de Polignac number, because 22242465 - 2² = 22242461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22242461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10824 + ... + 12713.

It is an arithmetic number, because the mean of its divisors is an integer number (1412280).

Almost surely, 2^22242465 is an apocalyptic number.

It is an amenable number.

22242465 is an abundant number, since it is smaller than the sum of its proper divisors (22950495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22242465 is a wasteful number, since it uses less digits than its factorization.

22242465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23558 (or 23552 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 22242465 is about 4716.1917899933. The cubic root of 22242465 is about 281.2295629594.

Adding to 22242465 its reverse (56424222), we get a palindrome (78666687).

The spelling of 22242465 in words is "twenty-two million, two hundred forty-two thousand, four hundred sixty-five".