22454915 has 16 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 15312480.

The previous prime is 22454899. The next prime is 22454917. The reversal of 22454915 is 51945422.

It is not a de Polignac number, because 22454915 - 2⁴ = 22454899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22454917) 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 15 ways as a sum of consecutive naturals, for example, 5006 + ... + 8364.

It is an arithmetic number, because the mean of its divisors is an integer number (1935360).

Almost surely, 2^22454915 is an apocalyptic number.

22454915 is a deficient number, since it is larger than the sum of its proper divisors (8510845).

22454915 is a wasteful number, since it uses less digits than its factorization.

22454915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562.

The product of its digits is 14400, while the sum is 32.

The square root of 22454915 is about 4738.6617309110. The cubic root of 22454915 is about 282.1221198697.

The spelling of 22454915 in words is "twenty-two million, four hundred fifty-four thousand, nine hundred fifteen".