22440066240 has 56 divisors (see below), whose sum is σ = 71247213360. Its totient is φ = 5984017408.

The previous prime is 22440066239. The next prime is 22440066269. The reversal of 22440066240 is 4266004422.

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

It is a junction number, because it is equal to n+sod(n) for n = 22440066198 and 22440066207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11686575 + ... + 11688494.

Almost surely, 2^22440066240 is an apocalyptic number.

22440066240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22440066240 is an abundant number, since it is smaller than the sum of its proper divisors (48807147120).

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

22440066240 is a wasteful number, since it uses less digits than its factorization.

22440066240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23375089 (or 23375079 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 22440066240 in words is "twenty-two billion, four hundred forty million, sixty-six thousand, two hundred forty".