22467985 has 4 divisors (see below), whose sum is σ = 26961588. Its totient is φ = 17974384.

The previous prime is 22467983. The next prime is 22467989. The reversal of 22467985 is 58976422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3519376 + 18948609 = 1876^2 + 4353^2 .

It is a cyclic number.

It is not a de Polignac number, because 22467985 - 2¹ = 22467983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22467983) 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 3 ways as a sum of consecutive naturals, for example, 2246794 + ... + 2246803.

It is an arithmetic number, because the mean of its divisors is an integer number (6740397).

Almost surely, 2^22467985 is an apocalyptic number.

It is an amenable number.

22467985 is a deficient number, since it is larger than the sum of its proper divisors (4493603).

22467985 is an equidigital number, since it uses as much as digits as its factorization.

22467985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493602.

The product of its digits is 241920, while the sum is 43.

The square root of 22467985 is about 4740.0406116404. The cubic root of 22467985 is about 282.1768461353.

The spelling of 22467985 in words is "twenty-two million, four hundred sixty-seven thousand, nine hundred eighty-five".