2781160 has 32 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 1063744.

The previous prime is 2781143. The next prime is 2781169. The reversal of 2781160 is 611872.

It is not an unprimeable number, because it can be changed into a prime (2781169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592 + ... + 2431.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

2^2781160 is an apocalyptic number.

2781160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2781160 is an abundant number, since it is smaller than the sum of its proper divisors (3750680).

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

2781160 is a wasteful number, since it uses less digits than its factorization.

2781160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3053 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2781160 is about 1667.6810246567. The cubic root of 2781160 is about 140.6291412772.

The spelling of 2781160 in words is "two million, seven hundred eighty-one thousand, one hundred sixty".