22455022240 has 144 divisors (see below), whose sum is σ = 61962503904. Its totient is φ = 7667520000.

The previous prime is 22455022231. The next prime is 22455022279. The reversal of 22455022240 is 4222055422.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 22455022199 and 22455022208.

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, 1962135 + ... + 1973545.

It is an arithmetic number, because the mean of its divisors is an integer number (430295166).

Almost surely, 2^22455022240 is an apocalyptic number.

22455022240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22455022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30981251952).

22455022240 is an abundant number, since it is smaller than the sum of its proper divisors (39507481664).

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

22455022240 is a wasteful number, since it uses less digits than its factorization.

22455022240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11691 (or 11676 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 22455022240 its reverse (4222055422), we get a palindrome (26677077662).

The spelling of 22455022240 in words is "twenty-two billion, four hundred fifty-five million, twenty-two thousand, two hundred forty".