22042043340 has 48 divisors (see below), whose sum is σ = 63845923680. Its totient is φ = 5675192320.

The previous prime is 22042043339. The next prime is 22042043351. The reversal of 22042043340 is 4334024022.

It is a self number, because there is not a number n which added to its sum of digits gives 22042043340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6332181 + ... + 6335660.

It is an arithmetic number, because the mean of its divisors is an integer number (1330123410).

Almost surely, 2^22042043340 is an apocalyptic number.

22042043340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22042043340 is an abundant number, since it is smaller than the sum of its proper divisors (41803880340).

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

22042043340 is a wasteful number, since it uses less digits than its factorization.

22042043340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12667882 (or 12667880 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 22042043340 its reverse (4334024022), we get a palindrome (26376067362).

The spelling of 22042043340 in words is "twenty-two billion, forty-two million, forty-three thousand, three hundred forty".