22540343430 has 48 divisors (see below), whose sum is σ = 59461808112. Its totient is φ = 5464324800.

The previous prime is 22540343389. The next prime is 22540343453. The reversal of 22540343430 is 3434304522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3101101 + ... + 3108360.

It is an arithmetic number, because the mean of its divisors is an integer number (1238787669).

Almost surely, 2^22540343430 is an apocalyptic number.

22540343430 is an abundant number, since it is smaller than the sum of its proper divisors (36921464682).

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

22540343430 is a wasteful number, since it uses less digits than its factorization.

22540343430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209493 (or 6209482 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 22540343430 its reverse (3434304522), we get a palindrome (25974647952).

The spelling of 22540343430 in words is "twenty-two billion, five hundred forty million, three hundred forty-three thousand, four hundred thirty".