2031881280 has 672 divisors, whose sum is σ = 8194048128. Its totient is φ = 420249600.

The previous prime is 2031881273. The next prime is 2031881297. The reversal of 2031881280 is 821881302.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49558060 + ... + 49558100.

It is an arithmetic number, because the mean of its divisors is an integer number (12193524).

Almost surely, 2^2031881280 is an apocalyptic number.

2031881280 is a gapful number since it is divisible by the number (20) 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 2031881280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4097024064).

2031881280 is an abundant number, since it is smaller than the sum of its proper divisors (6162166848).

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

2031881280 is a wasteful number, since it uses less digits than its factorization.

2031881280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 2031881280 is about 45076.3938220439. The cubic root of 2031881280 is about 1266.5804385746.

The spelling of 2031881280 in words is "two billion, thirty-one million, eight hundred eighty-one thousand, two hundred eighty".