22444539 has 32 divisors (see below), whose sum is σ = 34574400. Its totient is φ = 12828672.

The previous prime is 22444483. The next prime is 22444547. The reversal of 22444539 is 93544422.

It is not a de Polignac number, because 22444539 - 2⁹ = 22444027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22444439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64137 + ... + 64485.

It is an arithmetic number, because the mean of its divisors is an integer number (1080450).

Almost surely, 2^22444539 is an apocalyptic number.

22444539 is a deficient number, since it is larger than the sum of its proper divisors (12129861).

22444539 is a wasteful number, since it uses less digits than its factorization.

22444539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 34560, while the sum is 33.

The square root of 22444539 is about 4737.5667805320. The cubic root of 22444539 is about 282.0786587074.

The spelling of 22444539 in words is "twenty-two million, four hundred forty-four thousand, five hundred thirty-nine".