2172326 has 12 divisors (see below), whose sum is σ = 3528972. Its totient is φ = 1002456.

The previous prime is 2172323. The next prime is 2172337. The reversal of 2172326 is 6232712.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2876 + ... + 3551.

It is an arithmetic number, because the mean of its divisors is an integer number (294081).

2^2172326 is an apocalyptic number.

2172326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2172326 is a deficient number, since it is larger than the sum of its proper divisors (1356646).

2172326 is a wasteful number, since it uses less digits than its factorization.

2172326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455 (or 6442 counting only the distinct ones).

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

The square root of 2172326 is about 1473.8812706592. The cubic root of 2172326 is about 129.5114999999.

The spelling of 2172326 in words is "two million, one hundred seventy-two thousand, three hundred twenty-six".