1081878439 has 8 divisors (see below), whose sum is σ = 1156452192. Its totient is φ = 1009599360.

The previous prime is 1081878401. The next prime is 1081878443. The reversal of 1081878439 is 9348781801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1081878439 - 2⁷ = 1081878311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1081878392 and 1081878401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081878139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572694 + ... + 574579.

It is an arithmetic number, because the mean of its divisors is an integer number (144556524).

Almost surely, 2^1081878439 is an apocalyptic number.

1081878439 is a deficient number, since it is larger than the sum of its proper divisors (74573753).

1081878439 is a wasteful number, since it uses less digits than its factorization.

1081878439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147337.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1081878439 is about 32891.9205732958. The cubic root of 1081878439 is about 1026.5800541263.

The spelling of 1081878439 in words is "one billion, eighty-one million, eight hundred seventy-eight thousand, four hundred thirty-nine".