2781368 has 8 divisors (see below), whose sum is σ = 5215080. Its totient is φ = 1390680.

The previous prime is 2781349. The next prime is 2781377. The reversal of 2781368 is 8631872.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173828 + ... + 173843.

It is an arithmetic number, because the mean of its divisors is an integer number (651885).

2^2781368 is an apocalyptic number.

It is an amenable number.

2781368 is a deficient number, since it is larger than the sum of its proper divisors (2433712).

2781368 is a wasteful number, since it uses less digits than its factorization.

2781368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347677 (or 347673 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 2781368 is about 1667.7433855363. The cubic root of 2781368 is about 140.6326470245.

The spelling of 2781368 in words is "two million, seven hundred eighty-one thousand, three hundred sixty-eight".