2361800720 has 80 divisors (see below), whose sum is σ = 5682493440. Its totient is φ = 911961600.

The previous prime is 2361800699. The next prime is 2361800731. The reversal of 2361800720 is 270081632.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 1261385 + ... + 1263255.

It is an arithmetic number, because the mean of its divisors is an integer number (71031168).

Almost surely, 2^2361800720 is an apocalyptic number.

2361800720 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 2361800720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2841246720).

2361800720 is an abundant number, since it is smaller than the sum of its proper divisors (3320692720).

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

2361800720 is a wasteful number, since it uses less digits than its factorization.

2361800720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424 (or 2418 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 2361800720 is about 48598.3612892451. The cubic root of 2361800720 is about 1331.7245836128.

The spelling of 2361800720 in words is "two billion, three hundred sixty-one million, eight hundred thousand, seven hundred twenty".