2809424 has 20 divisors (see below), whose sum is σ = 5547636. Its totient is φ = 1377792.

The previous prime is 2809423. The next prime is 2809439. The reversal of 2809424 is 4249082.

2809424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2347024 + 462400 = 1532^2 + 680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2809423) 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 3 ways as a sum of consecutive naturals, for example, 809 + ... + 2504.

2^2809424 is an apocalyptic number.

It is an amenable number.

2809424 is a deficient number, since it is larger than the sum of its proper divisors (2738212).

2809424 is a wasteful number, since it uses less digits than its factorization.

2809424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 2809424 is about 1676.1336462228. The cubic root of 2809424 is about 141.1039255279.

It can be divided in two parts, 2809 and 424, that multiplied together give a cube (1191016 = 106³).

The spelling of 2809424 in words is "two million, eight hundred nine thousand, four hundred twenty-four".