2705140 has 12 divisors (see below), whose sum is σ = 5680836. Its totient is φ = 1082048.

The previous prime is 2705137. The next prime is 2705141. The reversal of 2705140 is 415072.

2705140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1354896 + 1350244 = 1164^2 + 1162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2705141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67609 + ... + 67648.

It is an arithmetic number, because the mean of its divisors is an integer number (473403).

2^2705140 is an apocalyptic number.

2705140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2705140 is an abundant number, since it is smaller than the sum of its proper divisors (2975696).

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

2705140 is a wasteful number, since it uses less digits than its factorization.

2705140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135266 (or 135264 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2705140 is about 1644.7309810422. The cubic root of 2705140 is about 139.3359710944.

The spelling of 2705140 in words is "two million, seven hundred five thousand, one hundred forty".