2027891140 has 96 divisors (see below), whose sum is σ = 4951425024. Its totient is φ = 690264960.

The previous prime is 2027891123. The next prime is 2027891143. The reversal of 2027891140 is 411987202.

It is a super-2 number, since 2×2027891140² = 8224684951380999200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2027891096 and 2027891105.

It is not an unprimeable number, because it can be changed into a prime (2027891143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233557 + ... + 242083.

It is an arithmetic number, because the mean of its divisors is an integer number (51577344).

Almost surely, 2^2027891140 is an apocalyptic number.

2027891140 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 2027891140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2475712512).

2027891140 is an abundant number, since it is smaller than the sum of its proper divisors (2923533884).

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

2027891140 is a wasteful number, since it uses less digits than its factorization.

2027891140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8617 (or 8615 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2027891140 is about 45032.1123199878. The cubic root of 2027891140 is about 1265.7508059385.

The spelling of 2027891140 in words is "two billion, twenty-seven million, eight hundred ninety-one thousand, one hundred forty".