2238843860 has 72 divisors (see below), whose sum is σ = 5208979104. Its totient is φ = 801620160.

The previous prime is 2238843833. The next prime is 2238843863. The reversal of 2238843860 is 683488322.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238843863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 986447 + ... + 988713.

It is an arithmetic number, because the mean of its divisors is an integer number (72346932).

Almost surely, 2^2238843860 is an apocalyptic number.

2238843860 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 2238843860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2604489552).

2238843860 is an abundant number, since it is smaller than the sum of its proper divisors (2970135244).

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

2238843860 is a wasteful number, since it uses less digits than its factorization.

2238843860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2352 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 2238843860 is about 47316.4227303798. The cubic root of 2238843860 is about 1308.2013775617.

The spelling of 2238843860 in words is "two billion, two hundred thirty-eight million, eight hundred forty-three thousand, eight hundred sixty".