2243871880 has 64 divisors (see below), whose sum is σ = 5320728000. Its totient is φ = 849302784.

The previous prime is 2243871797. The next prime is 2243871887. The reversal of 2243871880 is 881783422.

It is a super-2 number, since 2×2243871880² = 10069922027709468800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2243871887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083486 + ... + 1085554.

It is an arithmetic number, because the mean of its divisors is an integer number (83136375).

Almost surely, 2^2243871880 is an apocalyptic number.

2243871880 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 2243871880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2660364000).

2243871880 is an abundant number, since it is smaller than the sum of its proper divisors (3076856120).

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

2243871880 is a wasteful number, since it uses less digits than its factorization.

2243871880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3526 (or 3522 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 2243871880 is about 47369.5248023452. The cubic root of 2243871880 is about 1309.1799696645.

The spelling of 2243871880 in words is "two billion, two hundred forty-three million, eight hundred seventy-one thousand, eight hundred eighty".