2229940860 has 96 divisors (see below), whose sum is σ = 7187335680. Its totient is φ = 506020608.

The previous prime is 2229940849. The next prime is 2229940861. The reversal of 2229940860 is 680499222.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229940861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39282 + ... + 77478.

It is an arithmetic number, because the mean of its divisors is an integer number (74868080).

Almost surely, 2^2229940860 is an apocalyptic number.

2229940860 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 2229940860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3593667840).

2229940860 is an abundant number, since it is smaller than the sum of its proper divisors (4957394820).

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

2229940860 is a wasteful number, since it uses less digits than its factorization.

2229940860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38355 (or 38353 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2229940860 is about 47222.2496287502. The cubic root of 2229940860 is about 1306.4650067395.

The spelling of 2229940860 in words is "two billion, two hundred twenty-nine million, nine hundred forty thousand, eight hundred sixty".