2940009 has 16 divisors (see below), whose sum is σ = 4099584. Its totient is φ = 1872000.

The previous prime is 2939999. The next prime is 2940011. The reversal of 2940009 is 9000492.

It is not a de Polignac number, because 2940009 - 2⁵ = 2939977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2940059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9237 + ... + 9549.

It is an arithmetic number, because the mean of its divisors is an integer number (256224).

2^2940009 is an apocalyptic number.

It is an amenable number.

2940009 is a deficient number, since it is larger than the sum of its proper divisors (1159575).

2940009 is a wasteful number, since it uses less digits than its factorization.

2940009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 2940009 is about 1714.6454443995. The cubic root of 2940009 is about 143.2571213136.

The spelling of 2940009 in words is "two million, nine hundred forty thousand, nine".