1881039244 has 18 divisors (see below), whose sum is σ = 3829258860. Its totient is φ = 806159592.

The previous prime is 1881039241. The next prime is 1881039247. The reversal of 1881039244 is 4429301881.

It is an interprime number because it is at equal distance from previous prime (1881039241) and next prime (1881039247).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1881039197 and 1881039206.

It is not an unprimeable number, because it can be changed into a prime (1881039241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4798374 + ... + 4798765.

Almost surely, 2^1881039244 is an apocalyptic number.

1881039244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1881039244 is an abundant number, since it is smaller than the sum of its proper divisors (1948219616).

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

1881039244 is a wasteful number, since it uses less digits than its factorization.

1881039244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9597157 (or 9597148 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1881039244 is about 43370.9493094168. The cubic root of 1881039244 is about 1234.4285344204.

The spelling of 1881039244 in words is "one billion, eight hundred eighty-one million, thirty-nine thousand, two hundred forty-four".