22452454240 has 48 divisors (see below), whose sum is σ = 54873035280. Its totient is φ = 8671290880.

The previous prime is 22452454237. The next prime is 22452454243. The reversal of 22452454240 is 4245425422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22452454237) and next prime (22452454243).

It is a super-2 number, since 2×22452454240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22452454196 and 22452454205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22452454243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414806 + ... + 2424085.

It is an arithmetic number, because the mean of its divisors is an integer number (1143188235).

Almost surely, 2^22452454240 is an apocalyptic number.

22452454240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22452454240 is an abundant number, since it is smaller than the sum of its proper divisors (32420581040).

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

22452454240 is a wasteful number, since it uses less digits than its factorization.

22452454240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4838935 (or 4838927 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 34.

Adding to 22452454240 its reverse (4245425422), we get a palindrome (26697879662).

The spelling of 22452454240 in words is "twenty-two billion, four hundred fifty-two million, four hundred fifty-four thousand, two hundred forty".