881944039 has 24 divisors (see below), whose sum is σ = 948487904. Its totient is φ = 819720000.

The previous prime is 881944013. The next prime is 881944057. The reversal of 881944039 is 930449188.

It is a de Polignac number, because none of the positive numbers 2^k-881944039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 881944039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881944069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4872529 + ... + 4872709.

Almost surely, 2^881944039 is an apocalyptic number.

881944039 is a deficient number, since it is larger than the sum of its proper divisors (66543865).

881944039 is a wasteful number, since it uses less digits than its factorization.

881944039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 881944039 is about 29697.5426424477. The cubic root of 881944039 is about 958.9891120432.

The spelling of 881944039 in words is "eight hundred eighty-one million, nine hundred forty-four thousand, thirty-nine".