2239724 has 12 divisors (see below), whose sum is σ = 3956904. Its totient is φ = 1109184.

The previous prime is 2239723. The next prime is 2239747. The reversal of 2239724 is 4279322.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2239723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (329742).

2^2239724 is an apocalyptic number.

It is an amenable number.

2239724 is a deficient number, since it is larger than the sum of its proper divisors (1717180).

2239724 is a wasteful number, since it uses less digits than its factorization.

2239724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344 (or 5342 counting only the distinct ones).

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

The square root of 2239724 is about 1496.5707467407. The cubic root of 2239724 is about 130.8372782922.

The spelling of 2239724 in words is "two million, two hundred thirty-nine thousand, seven hundred twenty-four".