1722214 has 8 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 794856.

The previous prime is 1722211. The next prime is 1722241. The reversal of 1722214 is 4122271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1722191 and 1722200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1722211) by changing a digit.

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, 33094 + ... + 33145.

It is an arithmetic number, because the mean of its divisors is an integer number (347760).

2^1722214 is an apocalyptic number.

1722214 is a deficient number, since it is larger than the sum of its proper divisors (1059866).

1722214 is a wasteful number, since it uses less digits than its factorization.

1722214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66254.

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

The square root of 1722214 is about 1312.3315129951. The cubic root of 1722214 is about 119.8659150475.

Adding to 1722214 its reverse (4122271), we get a palindrome (5844485).

It can be divided in two parts, 172221 and 4, that added together give a square (172225 = 415²).

The spelling of 1722214 in words is "one million, seven hundred twenty-two thousand, two hundred fourteen".