2204243142440 has 64 divisors (see below), whose sum is σ = 5251509547200. Its totient is φ = 829797250048.

The previous prime is 2204243142421. The next prime is 2204243142481. The reversal of 2204243142440 is 442413424022.

It is a super-2 number, since 2×2204243142440² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2204243142397 and 2204243142406.

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, 20222567 + ... + 20331273.

It is an arithmetic number, because the mean of its divisors is an integer number (82054836675).

Almost surely, 2^{2204243142440} is an apocalyptic number.

2204243142440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204243142440 is an abundant number, since it is smaller than the sum of its proper divisors (3047266404760).

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

2204243142440 is a wasteful number, since it uses less digits than its factorization.

2204243142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138554 (or 138550 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 2204243142440 its reverse (442413424022), we get a palindrome (2646656566462).

The spelling of 2204243142440 in words is "two trillion, two hundred four billion, two hundred forty-three million, one hundred forty-two thousand, four hundred forty".