1722268 has 12 divisors (see below), whose sum is σ = 3078432. Its totient is φ = 842720.

The previous prime is 1722251. The next prime is 1722283. The reversal of 1722268 is 8622271.

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 3 ways as a sum of consecutive naturals, for example, 4393 + ... + 4768.

It is an arithmetic number, because the mean of its divisors is an integer number (256536).

2^1722268 is an apocalyptic number.

It is an amenable number.

1722268 is a deficient number, since it is larger than the sum of its proper divisors (1356164).

1722268 is a wasteful number, since it uses less digits than its factorization.

1722268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9212 (or 9210 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 1722268 is about 1312.3520869035. The cubic root of 1722268 is about 119.8671678325.

The spelling of 1722268 in words is "one million, seven hundred twenty-two thousand, two hundred sixty-eight".