2204212440 has 32 divisors (see below), whose sum is σ = 6612637680. Its totient is φ = 587789952.

The previous prime is 2204212427. The next prime is 2204212441. The reversal of 2204212440 is 442124022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204212441) 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, 9184099 + ... + 9184338.

Almost surely, 2^2204212440 is an apocalyptic number.

2204212440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204212440 is an abundant number, since it is smaller than the sum of its proper divisors (4408425240).

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

2204212440 is a wasteful number, since it uses less digits than its factorization.

2204212440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368451 (or 18368447 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2204212440 is about 46949.0408847721. The cubic root of 2204212440 is about 1301.4210181242.

Adding to 2204212440 its reverse (442124022), we get a palindrome (2646336462).

The spelling of 2204212440 in words is "two billion, two hundred four million, two hundred twelve thousand, four hundred forty".