2399956 has 12 divisors (see below), whose sum is σ = 4523092. Its totient is φ = 1107648.

The previous prime is 2399951. The next prime is 2399977. The reversal of 2399956 is 6599932.

2399956 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 1359556 + 1040400 = 1166^2 + 1020^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399951) 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, 23025 + ... + 23128.

2^2399956 is an apocalyptic number.

2399956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2399956 is a deficient number, since it is larger than the sum of its proper divisors (2123136).

2399956 is a wasteful number, since it uses less digits than its factorization.

2399956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46170 (or 46168 counting only the distinct ones).

The product of its digits is 131220, while the sum is 43.

The square root of 2399956 is about 1549.1791374789. The cubic root of 2399956 is about 133.8857718156.

The spelling of 2399956 in words is "two million, three hundred ninety-nine thousand, nine hundred fifty-six".