2259889820 has 12 divisors (see below), whose sum is σ = 4745768664. Its totient is φ = 903955920.

The previous prime is 2259889813. The next prime is 2259889837. The reversal of 2259889820 is 289889522.

It is a happy number.

2259889820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56497226 + ... + 56497265.

It is an arithmetic number, because the mean of its divisors is an integer number (395480722).

Almost surely, 2^2259889820 is an apocalyptic number.

2259889820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2259889820 is an abundant number, since it is smaller than the sum of its proper divisors (2485878844).

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

2259889820 is a wasteful number, since it uses less digits than its factorization.

2259889820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112994500 (or 112994498 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 53.

The square root of 2259889820 is about 47538.2984550352. The cubic root of 2259889820 is about 1312.2877917837.

The spelling of 2259889820 in words is "two billion, two hundred fifty-nine million, eight hundred eighty-nine thousand, eight hundred twenty".