2381120280 has 768 divisors, whose sum is σ = 10571904000. Its totient is φ = 465315840.

The previous prime is 2381120279. The next prime is 2381120281. The reversal of 2381120280 is 820211832.

2381120280 is a `hidden beast` number, since 2 + 381 + 1 + 2 + 0 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (2381120279) and next prime (2381120281).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381120281) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 17380372 + ... + 17380508.

It is an arithmetic number, because the mean of its divisors is an integer number (13765500).

Almost surely, 2^2381120280 is an apocalyptic number.

2381120280 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 2381120280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5285952000).

2381120280 is an abundant number, since it is smaller than the sum of its proper divisors (8190783720).

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

2381120280 is a wasteful number, since it uses less digits than its factorization.

2381120280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2381120280 is about 48796.7240703718. The cubic root of 2381120280 is about 1335.3459020358.

The spelling of 2381120280 in words is "two billion, three hundred eighty-one million, one hundred twenty thousand, two hundred eighty".