22543040430 has 48 divisors (see below), whose sum is σ = 59486725584. Its totient is φ = 5921752320.

The previous prime is 22543040423. The next prime is 22543040449. The reversal of 22543040430 is 3404034522.

22543040430 is a `hidden beast` number, since 2 + 254 + 3 + 0 + 404 + 3 + 0 = 666.

It is a super-2 number, since 2×22543040430² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22543040394 and 22543040403.

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, 1863211 + ... + 1875270.

It is an arithmetic number, because the mean of its divisors is an integer number (1239306783).

Almost surely, 2^22543040430 is an apocalyptic number.

22543040430 is an abundant number, since it is smaller than the sum of its proper divisors (36943685154).

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

22543040430 is a wasteful number, since it uses less digits than its factorization.

22543040430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738561 (or 3738558 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 22543040430 its reverse (3404034522), we get a palindrome (25947074952).

The spelling of 22543040430 in words is "twenty-two billion, five hundred forty-three million, forty thousand, four hundred thirty".