2381147208 has 96 divisors (see below), whose sum is σ = 7044148800. Its totient is φ = 720643200.

The previous prime is 2381147179. The next prime is 2381147221. The reversal of 2381147208 is 8027411832.

2381147208 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 48797²-1.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 876973 + ... + 879683.

It is an arithmetic number, because the mean of its divisors is an integer number (73376550).

Almost surely, 2^2381147208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2381147208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3522074400).

2381147208 is an abundant number, since it is smaller than the sum of its proper divisors (4663001592).

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

2381147208 is a wasteful number, since it uses less digits than its factorization.

2381147208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843 (or 3836 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2381147208 is about 48796.9999897535. Note that the first 4 decimals coincide. The cubic root of 2381147208 is about 1335.3509358091.

The spelling of 2381147208 in words is "two billion, three hundred eighty-one million, one hundred forty-seven thousand, two hundred eight".