2381287308 has 24 divisors (see below), whose sum is σ = 5883180912. Its totient is φ = 747070464.

The previous prime is 2381287303. The next prime is 2381287319. The reversal of 2381287308 is 8037821832.

It is a self number, because there is not a number n which added to its sum of digits gives 2381287308.

It is not an unprimeable number, because it can be changed into a prime (2381287303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5836285 + ... + 5836692.

It is an arithmetic number, because the mean of its divisors is an integer number (245132538).

Almost surely, 2^2381287308 is an apocalyptic number.

It is an amenable number.

2381287308 is an abundant number, since it is smaller than the sum of its proper divisors (3501893604).

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

2381287308 is a wasteful number, since it uses less digits than its factorization.

2381287308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11673001 (or 11672999 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 2381287308 is about 48798.4355077086. The cubic root of 2381287308 is about 1335.3771247257.

The spelling of 2381287308 in words is "two billion, three hundred eighty-one million, two hundred eighty-seven thousand, three hundred eight".