1881087936 has 448 divisors, whose sum is σ = 6641811456. Its totient is φ = 456192000.

The previous prime is 1881087919. The next prime is 1881087941. The reversal of 1881087936 is 6397801881.

It is a tau number, because it is divible by the number of its divisors (448).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12457461 + ... + 12457611.

It is an arithmetic number, because the mean of its divisors is an integer number (14825472).

Almost surely, 2^1881087936 is an apocalyptic number.

1881087936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1881087936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3320905728).

1881087936 is an abundant number, since it is smaller than the sum of its proper divisors (4760723520).

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

1881087936 is a wasteful number, since it uses less digits than its factorization.

1881087936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1881087936 is about 43371.5106492730. The cubic root of 1881087936 is about 1234.4391856735.

The spelling of 1881087936 in words is "one billion, eight hundred eighty-one million, eighty-seven thousand, nine hundred thirty-six".