2240400204220 has 24 divisors (see below), whose sum is σ = 4819592636208. Its totient is φ = 874302518400.

The previous prime is 2240400204187. The next prime is 2240400204223. The reversal of 2240400204220 is 224020040422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2240400204191 and 2240400204200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240400204223) 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, 1366096866 + ... + 1366098505.

It is an arithmetic number, because the mean of its divisors is an integer number (200816359842).

Almost surely, 2^{2240400204220} is an apocalyptic number.

2240400204220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240400204220 is an abundant number, since it is smaller than the sum of its proper divisors (2579192431988).

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

2240400204220 is a wasteful number, since it uses less digits than its factorization.

2240400204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732195421 (or 2732195419 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 2240400204220 its reverse (224020040422), we get a palindrome (2464420244642).

The spelling of 2240400204220 in words is "two trillion, two hundred forty billion, four hundred million, two hundred four thousand, two hundred twenty".