1881642032 has 40 divisors (see below), whose sum is σ = 3778552800. Its totient is φ = 906655232.

The previous prime is 1881642023. The next prime is 1881642043. The reversal of 1881642032 is 2302461881.

It is a junction number, because it is equal to n+sod(n) for n = 1881641983 and 1881642001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260453 + ... + 267579.

It is an arithmetic number, because the mean of its divisors is an integer number (94463820).

Almost surely, 2^1881642032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1881642032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1889276400).

1881642032 is an abundant number, since it is smaller than the sum of its proper divisors (1896910768).

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

1881642032 is a wasteful number, since it uses less digits than its factorization.

1881642032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7733 (or 7727 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 1881642032 is about 43377.8979665912. The cubic root of 1881642032 is about 1234.5603798423.

The spelling of 1881642032 in words is "one billion, eight hundred eighty-one million, six hundred forty-two thousand, thirty-two".