2204172340 has 48 divisors (see below), whose sum is σ = 4838440320. Its totient is φ = 841864320.

The previous prime is 2204172337. The next prime is 2204172367. The reversal of 2204172340 is 432714022.

It is a happy number.

It is a congruent number.

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, 280870 + ... + 288610.

It is an arithmetic number, because the mean of its divisors is an integer number (100800840).

Almost surely, 2^2204172340 is an apocalyptic number.

2204172340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2204172340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419220160).

2204172340 is an abundant number, since it is smaller than the sum of its proper divisors (2634267980).

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

2204172340 is a wasteful number, since it uses less digits than its factorization.

2204172340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392 (or 8390 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2204172340 is about 46948.6138240524. The cubic root of 2204172340 is about 1301.4131260689.

Adding to 2204172340 its reverse (432714022), we get a palindrome (2636886362).

The spelling of 2204172340 in words is "two billion, two hundred four million, one hundred seventy-two thousand, three hundred forty".