22484639 has 4 divisors (see below), whose sum is σ = 23462256. Its totient is φ = 21507024.

The previous prime is 22484611. The next prime is 22484647. The reversal of 22484639 is 93648422.

It is a happy number.

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

It is not a de Polignac number, because 22484639 - 2¹² = 22480543 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 (22484689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488774 + ... + 488819.

It is an arithmetic number, because the mean of its divisors is an integer number (5865564).

Almost surely, 2^22484639 is an apocalyptic number.

22484639 is a deficient number, since it is larger than the sum of its proper divisors (977617).

22484639 is an equidigital number, since it uses as much as digits as its factorization.

22484639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977616.

The product of its digits is 82944, while the sum is 38.

The square root of 22484639 is about 4741.7970222269. The cubic root of 22484639 is about 282.2465484631.

The spelling of 22484639 in words is "twenty-two million, four hundred eighty-four thousand, six hundred thirty-nine".