2321849680 has 80 divisors (see below), whose sum is σ = 5606297424. Its totient is φ = 893583360.

The previous prime is 2321849669. The next prime is 2321849693. The reversal of 2321849680 is 869481232.

It can be written as a sum of positive squares in 8 ways, for example, as 595945744 + 1725903936 = 24412^2 + 41544^2 .

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

It is a super-2 number, since 2×2321849680² = 10781971873032204800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 234592 + ... + 244288.

Almost surely, 2^2321849680 is an apocalyptic number.

2321849680 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 2321849680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2803148712).

2321849680 is an abundant number, since it is smaller than the sum of its proper divisors (3284447744).

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

2321849680 is a wasteful number, since it uses less digits than its factorization.

2321849680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9824 (or 9818 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2321849680 is about 48185.5754349785. The cubic root of 2321849680 is about 1324.1729130417.

The spelling of 2321849680 in words is "two billion, three hundred twenty-one million, eight hundred forty-nine thousand, six hundred eighty".