2742705 has 24 divisors (see below), whose sum is σ = 5433792. Its totient is φ = 1253664.

The previous prime is 2742703. The next prime is 2742721. The reversal of 2742705 is 5072472.

It is not a de Polignac number, because 2742705 - 2¹ = 2742703 is a prime.

2742705 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2742703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4039 + ... + 4668.

It is an arithmetic number, because the mean of its divisors is an integer number (226408).

2^2742705 is an apocalyptic number.

It is an amenable number.

2742705 is a deficient number, since it is larger than the sum of its proper divisors (2691087).

2742705 is a wasteful number, since it uses less digits than its factorization.

2742705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725 (or 8722 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2742705 is about 1656.1114092959. Note that the first 3 decimals coincide. The cubic root of 2742705 is about 139.9779727249.

The spelling of 2742705 in words is "two million, seven hundred forty-two thousand, seven hundred five".