2123672 has 8 divisors (see below), whose sum is σ = 3981900. Its totient is φ = 1061832.

The previous prime is 2123669. The next prime is 2123683. The reversal of 2123672 is 2763212.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132722 + ... + 132737.

2^2123672 is an apocalyptic number.

It is an amenable number.

2123672 is a deficient number, since it is larger than the sum of its proper divisors (1858228).

2123672 is a wasteful number, since it uses less digits than its factorization.

2123672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265465 (or 265461 counting only the distinct ones).

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

The square root of 2123672 is about 1457.2824022817. The cubic root of 2123672 is about 128.5372922896.

Adding to 2123672 its reverse (2763212), we get a palindrome (4886884).

The spelling of 2123672 in words is "two million, one hundred twenty-three thousand, six hundred seventy-two".