2740009 has 12 divisors (see below), whose sum is σ = 3070000. Its totient is φ = 2438208.

The previous prime is 2739991. The next prime is 2740027. The reversal of 2740009 is 9000472.

2740009 = 95² + 96² + ... + 208².

It is an interprime number because it is at equal distance from previous prime (2739991) and next prime (2740027).

It is not a de Polignac number, because 2740009 - 2⁵ = 2739977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2740039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5242 + ... + 5740.

2^2740009 is an apocalyptic number.

It is an amenable number.

2740009 is a deficient number, since it is larger than the sum of its proper divisors (329991).

2740009 is a wasteful number, since it uses less digits than its factorization.

2740009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2740009 is about 1655.2972542719. The cubic root of 2740009 is about 139.9320929173.

The spelling of 2740009 in words is "two million, seven hundred forty thousand, nine".