2740806 has 12 divisors (see below), whose sum is σ = 5938452. Its totient is φ = 913596.

The previous prime is 2740799. The next prime is 2740811. The reversal of 2740806 is 6080472.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2740806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76116 + ... + 76151.

It is an arithmetic number, because the mean of its divisors is an integer number (494871).

2^2740806 is an apocalyptic number.

2740806 is an abundant number, since it is smaller than the sum of its proper divisors (3197646).

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

2740806 is a wasteful number, since it uses less digits than its factorization.

2740806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152275 (or 152272 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2740806 is about 1655.5379790268. The cubic root of 2740806 is about 139.9456591825.

The spelling of 2740806 in words is "two million, seven hundred forty thousand, eight hundred six".