22540020043 has 8 divisors (see below), whose sum is σ = 22603047680. Its totient is φ = 22477072320.

The previous prime is 22540020037. The next prime is 22540020089. The reversal of 22540020043 is 34002004522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22540020043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22540019996 and 22540020023.

It is not an unprimeable number, because it can be changed into a prime (22540020143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568903 + ... + 607231.

It is an arithmetic number, because the mean of its divisors is an integer number (2825380960).

Almost surely, 2^22540020043 is an apocalyptic number.

22540020043 is a deficient number, since it is larger than the sum of its proper divisors (63027637).

22540020043 is a wasteful number, since it uses less digits than its factorization.

22540020043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39957.

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 22540020043 its reverse (34002004522), we get a palindrome (56542024565).

The spelling of 22540020043 in words is "twenty-two billion, five hundred forty million, twenty thousand, forty-three".