22305465 has 72 divisors (see below), whose sum is σ = 47960640. Its totient is φ = 9389952.

The previous prime is 22305457. The next prime is 22305467. The reversal of 22305465 is 56450322.

It is not a de Polignac number, because 22305465 - 2³ = 22305457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22305467) 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 71 ways as a sum of consecutive naturals, for example, 53026 + ... + 53444.

It is an arithmetic number, because the mean of its divisors is an integer number (666120).

Almost surely, 2^22305465 is an apocalyptic number.

It is an amenable number.

22305465 is an abundant number, since it is smaller than the sum of its proper divisors (25655175).

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

22305465 is a wasteful number, since it uses less digits than its factorization.

22305465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 22305465 is about 4722.8661848500. The cubic root of 22305465 is about 281.4948327332.

Adding to 22305465 its reverse (56450322), we get a palindrome (78755787).

The spelling of 22305465 in words is "twenty-two million, three hundred five thousand, four hundred sixty-five".