2381645044 has 12 divisors (see below), whose sum is σ = 4209145668. Its totient is φ = 1179032000.

The previous prime is 2381645017. The next prime is 2381645059. The reversal of 2381645044 is 4405461832.

2381645044 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 2 ways, for example, as 1719097444 + 662547600 = 41462^2 + 25740^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2381644994 and 2381645012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947177 + ... + 2947984.

It is an arithmetic number, because the mean of its divisors is an integer number (350762139).

Almost surely, 2^2381645044 is an apocalyptic number.

It is an amenable number.

2381645044 is a deficient number, since it is larger than the sum of its proper divisors (1827500624).

2381645044 is a wasteful number, since it uses less digits than its factorization.

2381645044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895266 (or 5895264 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 2381645044 is about 48802.1008154362. The cubic root of 2381645044 is about 1335.4439917168.

The spelling of 2381645044 in words is "two billion, three hundred eighty-one million, six hundred forty-five thousand, forty-four".