1722248 has 16 divisors (see below), whose sum is σ = 3522960. Its totient is φ = 782800.

The previous prime is 1722241. The next prime is 1722251. The reversal of 1722248 is 8422271.

It is a super-2 number, since 2×1722248² = 5932276347008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1722241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9698 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (220185).

2^1722248 is an apocalyptic number.

It is an amenable number.

1722248 is an abundant number, since it is smaller than the sum of its proper divisors (1800712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1722248 is a wasteful number, since it uses less digits than its factorization.

1722248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19588 (or 19584 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 1722248 is about 1312.3444669750. The cubic root of 1722248 is about 119.8667038411.

The spelling of 1722248 in words is "one million, seven hundred twenty-two thousand, two hundred forty-eight".