2361581140 has 48 divisors (see below), whose sum is σ = 5089132944. Its totient is φ = 919987200.

The previous prime is 2361581111. The next prime is 2361581153. The reversal of 2361581140 is 411851632.

It can be written as a sum of positive squares in 8 ways, for example, as 77123524 + 2284457616 = 8782^2 + 47796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539842 + ... + 544198.

It is an arithmetic number, because the mean of its divisors is an integer number (106023603).

Almost surely, 2^2361581140 is an apocalyptic number.

2361581140 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 2361581140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2544566472).

2361581140 is an abundant number, since it is smaller than the sum of its proper divisors (2727551804).

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

2361581140 is a wasteful number, since it uses less digits than its factorization.

2361581140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 5066 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 2361581140 is about 48596.1021070620. The cubic root of 2361581140 is about 1331.6833115523.

The spelling of 2361581140 in words is "two billion, three hundred sixty-one million, five hundred eighty-one thousand, one hundred forty".