1881042280 has 128 divisors (see below), whose sum is σ = 4729777920. Its totient is φ = 668805120.

The previous prime is 1881042271. The next prime is 1881042287. The reversal of 1881042280 is 822401881.

It is not an unprimeable number, because it can be changed into a prime (1881042287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1769029 + ... + 1770091.

It is an arithmetic number, because the mean of its divisors is an integer number (36951390).

Almost surely, 2^1881042280 is an apocalyptic number.

1881042280 is a gapful number since it is divisible by the number (10) 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 1881042280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2364888960).

1881042280 is an abundant number, since it is smaller than the sum of its proper divisors (2848735640).

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

1881042280 is a wasteful number, since it uses less digits than its factorization.

1881042280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The square root of 1881042280 is about 43370.9843097894. The cubic root of 1881042280 is about 1234.4291985432.

The spelling of 1881042280 in words is "one billion, eight hundred eighty-one million, forty-two thousand, two hundred eighty".