2724239 has 8 divisors (see below), whose sum is σ = 3277440. Its totient is φ = 2212056.

The previous prime is 2724229. The next prime is 2724251. The reversal of 2724239 is 9324272.

It is a happy number.

2724239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2724239 - 2⁴ = 2724223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2724209) 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 7 ways as a sum of consecutive naturals, for example, 10109 + ... + 10374.

It is an arithmetic number, because the mean of its divisors is an integer number (409680).

2^2724239 is an apocalyptic number.

2724239 is a deficient number, since it is larger than the sum of its proper divisors (553201).

2724239 is a wasteful number, since it uses less digits than its factorization.

2724239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20509.

The product of its digits is 6048, while the sum is 29.

The square root of 2724239 is about 1650.5268855732. The cubic root of 2724239 is about 139.6631185853.

The spelling of 2724239 in words is "two million, seven hundred twenty-four thousand, two hundred thirty-nine".