2724309 has 24 divisors (see below), whose sum is σ = 4560192. Its totient is φ = 1535040.

The previous prime is 2724299. The next prime is 2724329. The reversal of 2724309 is 9034272.

2724309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2724309 - 2⁷ = 2724181 is a prime.

2724309 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2724329) 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 23 ways as a sum of consecutive naturals, for example, 4969 + ... + 5489.

It is an arithmetic number, because the mean of its divisors is an integer number (190008).

2^2724309 is an apocalyptic number.

It is an amenable number.

2724309 is a deficient number, since it is larger than the sum of its proper divisors (1835883).

2724309 is a wasteful number, since it uses less digits than its factorization.

2724309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2724309 is about 1650.5480907868. The cubic root of 2724309 is about 139.6643148013.

It can be divided in two parts, 27 and 24309, that added together give a square (24336 = 156²).

The spelling of 2724309 in words is "two million, seven hundred twenty-four thousand, three hundred nine".