2172412 has 24 divisors (see below), whose sum is σ = 4198320. Its totient is φ = 975360.

The previous prime is 2172397. The next prime is 2172427. The reversal of 2172412 is 2142712.

It is a happy number.

2172412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2172397) and next prime (2172427).

It is a self number, because there is not a number n which added to its sum of digits gives 2172412.

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, 4014 + ... + 4522.

It is an arithmetic number, because the mean of its divisors is an integer number (174930).

2^2172412 is an apocalyptic number.

2172412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2172412 is a deficient number, since it is larger than the sum of its proper divisors (2025908).

2172412 is a wasteful number, since it uses less digits than its factorization.

2172412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its digits is 224, while the sum is 19.

The square root of 2172412 is about 1473.9104450407. The cubic root of 2172412 is about 129.5132090500.

It can be divided in two parts, 21724 and 12, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 2172412 in words is "two million, one hundred seventy-two thousand, four hundred twelve".