2204040340 has 12 divisors (see below), whose sum is σ = 4628484756. Its totient is φ = 881616128.

The previous prime is 2204040271. The next prime is 2204040341. The reversal of 2204040340 is 430404022.

It can be written as a sum of positive squares in 2 ways, for example, as 545596164 + 1658444176 = 23358^2 + 40724^2 .

It is a super-3 number, since 3×2204040340³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204040341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55100989 + ... + 55101028.

It is an arithmetic number, because the mean of its divisors is an integer number (385707063).

Almost surely, 2^2204040340 is an apocalyptic number.

2204040340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204040340 is an abundant number, since it is smaller than the sum of its proper divisors (2424444416).

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

2204040340 is a wasteful number, since it uses less digits than its factorization.

2204040340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110202026 (or 110202024 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2204040340 is about 46947.2080107007. The cubic root of 2204040340 is about 1301.3871465574.

Adding to 2204040340 its reverse (430404022), we get a palindrome (2634444362).

The spelling of 2204040340 in words is "two billion, two hundred four million, forty thousand, three hundred forty".