2381994576 has 360 divisors, whose sum is σ = 7960974840. Its totient is φ = 658538496.

The previous prime is 2381994557. The next prime is 2381994607. The reversal of 2381994576 is 6754991832.

2381994576 is a `hidden beast` number, since 23 + 81 + 99 + 457 + 6 = 666.

2381994576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 719312400 + 1662682176 = 26820^2 + 40776^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26763940 + ... + 26764028.

It is an arithmetic number, because the mean of its divisors is an integer number (22113819).

Almost surely, 2^2381994576 is an apocalyptic number.

2381994576 is a gapful number since it is divisible by the number (26) 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 2381994576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3980487420).

2381994576 is an abundant number, since it is smaller than the sum of its proper divisors (5578980264).

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

2381994576 is a wasteful number, since it uses less digits than its factorization.

2381994576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 153 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 2381994576 is about 48805.6818003806. The cubic root of 2381994576 is about 1335.5093187726.

The spelling of 2381994576 in words is "two billion, three hundred eighty-one million, nine hundred ninety-four thousand, five hundred seventy-six".