2543281960 has 32 divisors (see below), whose sum is σ = 5773035240. Its totient is φ = 1008308224.

The previous prime is 2543281927. The next prime is 2543281981. The reversal of 2543281960 is 691823452.

It can be written as a sum of positive squares in 4 ways, for example, as 569967876 + 1973314084 = 23874^2 + 44422^2 .

It is a super-2 number, since 2×2543281960² = 12936566256122883200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 276817 + ... + 285856.

Almost surely, 2^2543281960 is an apocalyptic number.

2543281960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2543281960 is an abundant number, since it is smaller than the sum of its proper divisors (3229753280).

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

2543281960 is a wasteful number, since it uses less digits than its factorization.

2543281960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562797 (or 562793 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2543281960 is about 50430.9623148319. The cubic root of 2543281960 is about 1364.9963924462.

The spelling of 2543281960 in words is "two billion, five hundred forty-three million, two hundred eighty-one thousand, nine hundred sixty".