22442444040 has 64 divisors (see below), whose sum is σ = 67577716800. Its totient is φ = 5962395392.

The previous prime is 22442444033. The next prime is 22442444047. The reversal of 22442444040 is 4044424422.

It is an interprime number because it is at equal distance from previous prime (22442444033) and next prime (22442444047).

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 = 22442443989 and 22442444007.

It is not an unprimeable number, because it can be changed into a prime (22442444047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315342 + ... + 379901.

It is an arithmetic number, because the mean of its divisors is an integer number (1055901825).

Almost surely, 2^22442444040 is an apocalyptic number.

22442444040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22442444040 is an abundant number, since it is smaller than the sum of its proper divisors (45135272760).

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

22442444040 is a wasteful number, since it uses less digits than its factorization.

22442444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695526 (or 695522 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 22442444040 its reverse (4044424422), we get a palindrome (26486868462).

The spelling of 22442444040 in words is "twenty-two billion, four hundred forty-two million, four hundred forty-four thousand, forty".