22080915 has 24 divisors (see below), whose sum is σ = 38386608. Its totient is φ = 11741760.

The previous prime is 22080911. The next prime is 22080917. The reversal of 22080915 is 51908022.

It is not a de Polignac number, because 22080915 - 2² = 22080911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22080911) 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 23 ways as a sum of consecutive naturals, for example, 23892 + ... + 24798.

It is an arithmetic number, because the mean of its divisors is an integer number (1599442).

Almost surely, 2^22080915 is an apocalyptic number.

22080915 is a deficient number, since it is larger than the sum of its proper divisors (16305693).

22080915 is a wasteful number, since it uses less digits than its factorization.

22080915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 22080915 is about 4699.0334112453. The cubic root of 22080915 is about 280.5470385430.

Adding to 22080915 its reverse (51908022), we get a palindrome (73988937).

The spelling of 22080915 in words is "twenty-two million, eighty thousand, nine hundred fifteen".