2239874868 has 144 divisors (see below), whose sum is σ = 6846916608. Its totient is φ = 562968000.

The previous prime is 2239874863. The next prime is 2239874953. The reversal of 2239874868 is 8684789322.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239874863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194923 + ... + 206093.

It is an arithmetic number, because the mean of its divisors is an integer number (47548032).

Almost surely, 2^2239874868 is an apocalyptic number.

2239874868 is a gapful number since it is divisible by the number (28) 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 2239874868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3423458304).

2239874868 is an abundant number, since it is smaller than the sum of its proper divisors (4607041740).

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

2239874868 is a wasteful number, since it uses less digits than its factorization.

2239874868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11234 (or 11225 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 57.

The square root of 2239874868 is about 47327.3162983070. The cubic root of 2239874868 is about 1308.4021596295.

The spelling of 2239874868 in words is "two billion, two hundred thirty-nine million, eight hundred seventy-four thousand, eight hundred sixty-eight".