2239831 has 12 divisors (see below), whose sum is σ = 2499336. Its totient is φ = 2005520.

The previous prime is 2239807. The next prime is 2239847. The reversal of 2239831 is 1389322.

2239831 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 2239831 - 2⁷ = 2239703 is a prime.

It is a super-2 number, since 2×2239831² = 10033685817122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2239831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239031) 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 11 ways as a sum of consecutive naturals, for example, 12861 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (208278).

2^2239831 is an apocalyptic number.

2239831 is a deficient number, since it is larger than the sum of its proper divisors (259505).

2239831 is a wasteful number, since it uses less digits than its factorization.

2239831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 291 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 2239831 is about 1496.6064947073. The cubic root of 2239831 is about 130.8393617878.

The spelling of 2239831 in words is "two million, two hundred thirty-nine thousand, eight hundred thirty-one".