2229688890 has 512 divisors, whose sum is σ = 7664025600. Its totient is φ = 452874240.

The previous prime is 2229688829. The next prime is 2229688891. The reversal of 2229688890 is 988869222.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2229688891) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 28223871 + ... + 28223949.

It is an arithmetic number, because the mean of its divisors is an integer number (14968800).

Almost surely, 2^2229688890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2229688890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3832012800).

2229688890 is an abundant number, since it is smaller than the sum of its proper divisors (5434336710).

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

2229688890 is a wasteful number, since it uses less digits than its factorization.

2229688890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 2229688890 is about 47219.5816372826. The cubic root of 2229688890 is about 1306.4157973048.

The spelling of 2229688890 in words is "two billion, two hundred twenty-nine million, six hundred eighty-eight thousand, eight hundred ninety".