22488601444 has 27 divisors (see below), whose sum is σ = 39816466347. Its totient is φ = 11113983744.

The previous prime is 22488601441. The next prime is 22488601451. The reversal of 22488601444 is 44410688422.

The square root of 22488601444 is 149962.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6783499044 + 15705102400 = 82362^2 + 125320^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22488601444.

It is not an unprimeable number, because it can be changed into a prime (22488601441) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29092242 + ... + 29093014.

Almost surely, 2^22488601444 is an apocalyptic number.

22488601444 is the 149962-nd square number.

It is an amenable number.

22488601444 is a deficient number, since it is larger than the sum of its proper divisors (17327864903).

22488601444 is an frugal number, since it uses more digits than its factorization.

22488601444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 43.

The spelling of 22488601444 in words is "twenty-two billion, four hundred eighty-eight million, six hundred one thousand, four hundred forty-four".