22464149 has 4 divisors (see below), whose sum is σ = 22489260. Its totient is φ = 22439040.

The previous prime is 22464121. The next prime is 22464173. The reversal of 22464149 is 94146422.

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 6916900 + 15547249 = 2630^2 + 3943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22464149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22464179) 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, 11162 + ... + 13019.

It is an arithmetic number, because the mean of its divisors is an integer number (5622315).

Almost surely, 2^22464149 is an apocalyptic number.

It is an amenable number.

22464149 is a deficient number, since it is larger than the sum of its proper divisors (25111).

22464149 is an equidigital number, since it uses as much as digits as its factorization.

22464149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25110.

The product of its digits is 13824, while the sum is 32.

The square root of 22464149 is about 4739.6359564844. The cubic root of 22464149 is about 282.1607863657.

The spelling of 22464149 in words is "twenty-two million, four hundred sixty-four thousand, one hundred forty-nine".