2202865890 has 128 divisors (see below), whose sum is σ = 5844787200. Its totient is φ = 529182720.

The previous prime is 2202865879. The next prime is 2202865891. The reversal of 2202865890 is 985682022.

It is not an unprimeable number, because it can be changed into a prime (2202865891) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1041474 + ... + 1043586.

It is an arithmetic number, because the mean of its divisors is an integer number (45662400).

Almost surely, 2^2202865890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2202865890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2922393600).

2202865890 is an abundant number, since it is smaller than the sum of its proper divisors (3641921310).

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

2202865890 is a wasteful number, since it uses less digits than its factorization.

2202865890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 2202865890 is about 46934.6981454020. The cubic root of 2202865890 is about 1301.1559521059.

The spelling of 2202865890 in words is "two billion, two hundred two million, eight hundred sixty-five thousand, eight hundred ninety".