22493459 has 4 divisors (see below), whose sum is σ = 22546080. Its totient is φ = 22440840.

The previous prime is 22493453. The next prime is 22493467. The reversal of 22493459 is 95439422.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22493459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22493453) 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, 25664 + ... + 26525.

It is an arithmetic number, because the mean of its divisors is an integer number (5636520).

Almost surely, 2^22493459 is an apocalyptic number.

22493459 is a deficient number, since it is larger than the sum of its proper divisors (52621).

22493459 is an equidigital number, since it uses as much as digits as its factorization.

22493459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52620.

The product of its digits is 77760, while the sum is 38.

The square root of 22493459 is about 4742.7269581961. The cubic root of 22493459 is about 282.2834490499.

The spelling of 22493459 in words is "twenty-two million, four hundred ninety-three thousand, four hundred fifty-nine".