22013320340 has 48 divisors (see below), whose sum is σ = 51183244224. Its totient is φ = 7885363200.

The previous prime is 22013320327. The next prime is 22013320387. The reversal of 22013320340 is 4302331022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 731981 + ... + 761460.

It is an arithmetic number, because the mean of its divisors is an integer number (1066317588).

Almost surely, 2^22013320340 is an apocalyptic number.

22013320340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22013320340 is an abundant number, since it is smaller than the sum of its proper divisors (29169923884).

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

22013320340 is a wasteful number, since it uses less digits than its factorization.

22013320340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493528 (or 1493526 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22013320340 its reverse (4302331022), we get a palindrome (26315651362).

The spelling of 22013320340 in words is "twenty-two billion, thirteen million, three hundred twenty thousand, three hundred forty".