2239800660 has 240 divisors, whose sum is σ = 7499568384. Its totient is φ = 557632512.

The previous prime is 2239800599. The next prime is 2239800691. The reversal of 2239800660 is 660089322.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4598937 + ... + 4599423.

Almost surely, 2^2239800660 is an apocalyptic number.

2239800660 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 2239800660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749784192).

2239800660 is an abundant number, since it is smaller than the sum of its proper divisors (5259767724).

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

2239800660 is a wasteful number, since it uses less digits than its factorization.

2239800660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2239800660 is about 47326.5323048288. The cubic root of 2239800660 is about 1308.3877101646.

Adding to 2239800660 its reverse (660089322), we get a palindrome (2899889982).

The spelling of 2239800660 in words is "two billion, two hundred thirty-nine million, eight hundred thousand, six hundred sixty".