2381804505 has 12 divisors (see below), whose sum is σ = 4128461220. Its totient is φ = 1270295712.

The previous prime is 2381804501. The next prime is 2381804531. The reversal of 2381804505 is 5054081832.

It is a happy number.

2381804505 is a `hidden beast` number, since 23 + 8 + 180 + 450 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1890162576 + 491641929 = 43476^2 + 22173^2 .

It is not a de Polignac number, because 2381804505 - 2² = 2381804501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2381804505.

It is not an unprimeable number, because it can be changed into a prime (2381804501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26464450 + ... + 26464539.

It is an arithmetic number, because the mean of its divisors is an integer number (344038435).

Almost surely, 2^2381804505 is an apocalyptic number.

It is an amenable number.

2381804505 is a deficient number, since it is larger than the sum of its proper divisors (1746656715).

2381804505 is a wasteful number, since it uses less digits than its factorization.

2381804505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52929000 (or 52928997 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 2381804505 is about 48803.7345394797. The cubic root of 2381804505 is about 1335.4737955537.

The spelling of 2381804505 in words is "two billion, three hundred eighty-one million, eight hundred four thousand, five hundred five".