22004034440 has 16 divisors (see below), whose sum is σ = 49509077580. Its totient is φ = 8801613760.

The previous prime is 22004034389. The next prime is 22004034449. The reversal of 22004034440 is 4443040022.

It can be written as a sum of positive squares in 2 ways, for example, as 21152211844 + 851822596 = 145438^2 + 29186^2 .

It is a super-2 number, since 2×22004034440² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22004034449) 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, 275050391 + ... + 275050470.

Almost surely, 2^22004034440 is an apocalyptic number.

22004034440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22004034440 is an abundant number, since it is smaller than the sum of its proper divisors (27505043140).

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

22004034440 is a wasteful number, since it uses less digits than its factorization.

22004034440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550100872 (or 550100868 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 22004034440 its reverse (4443040022), we get a palindrome (26447074462).

The spelling of 22004034440 in words is "twenty-two billion, four million, thirty-four thousand, four hundred forty".