2009724 has 24 divisors (see below), whose sum is σ = 4712400. Its totient is φ = 666624.

The previous prime is 2009719. The next prime is 2009731. The reversal of 2009724 is 4279002.

It is a junction number, because it is equal to n+sod(n) for n = 2009694 and 2009703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252 + ... + 4700.

It is an arithmetic number, because the mean of its divisors is an integer number (196350).

2^2009724 is an apocalyptic number.

It is an amenable number.

2009724 is an abundant number, since it is smaller than the sum of its proper divisors (2702676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2009724 is a wasteful number, since it uses less digits than its factorization.

2009724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2009724 is about 1417.6473468391. The cubic root of 2009724 is about 126.1959661594.

The spelling of 2009724 in words is "two million, nine thousand, seven hundred twenty-four".