22043240454 has 32 divisors (see below), whose sum is σ = 44705106144. Its totient is φ = 7244709120.

The previous prime is 22043240449. The next prime is 22043240491. The reversal of 22043240454 is 45404234022.

It is a super-2 number, since 2×22043240454² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 1751424 + ... + 1763964.

It is an arithmetic number, because the mean of its divisors is an integer number (1397034567).

Almost surely, 2^22043240454 is an apocalyptic number.

22043240454 is an abundant number, since it is smaller than the sum of its proper divisors (22661865690).

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

22043240454 is a wasteful number, since it uses less digits than its factorization.

22043240454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16632.

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 22043240454 its reverse (45404234022), we get a palindrome (67447474476).

The spelling of 22043240454 in words is "twenty-two billion, forty-three million, two hundred forty thousand, four hundred fifty-four".