2123726 has 16 divisors (see below), whose sum is σ = 3570480. Its totient is φ = 938880.

The previous prime is 2123707. The next prime is 2123731. The reversal of 2123726 is 6273212.

2123726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 491 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (223155).

2^2123726 is an apocalyptic number.

2123726 is a deficient number, since it is larger than the sum of its proper divisors (1446754).

2123726 is a wasteful number, since it uses less digits than its factorization.

2123726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659.

The product of its digits is 1008, while the sum is 23.

The square root of 2123726 is about 1457.3009298014. The cubic root of 2123726 is about 128.5383817477.

Adding to 2123726 its reverse (6273212), we get a palindrome (8396938).

The spelling of 2123726 in words is "two million, one hundred twenty-three thousand, seven hundred twenty-six".