22144330240 has 40 divisors (see below), whose sum is σ = 53094497940. Its totient is φ = 8857731072.

The previous prime is 22144330231. The next prime is 22144330289. The reversal of 22144330240 is 4203344122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22127157504 + 17172736 = 148752^2 + 4144^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4322505 + ... + 4327624.

Almost surely, 2^22144330240 is an apocalyptic number.

22144330240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22144330240 is an abundant number, since it is smaller than the sum of its proper divisors (30950167700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22144330240 is an frugal number, since it uses more digits than its factorization.

22144330240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650152 (or 8650136 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22144330240 its reverse (4203344122), we get a palindrome (26347674362).

The spelling of 22144330240 in words is "twenty-two billion, one hundred forty-four million, three hundred thirty thousand, two hundred forty".