1222726 has 16 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 553608.

The previous prime is 1222723. The next prime is 1222729. The reversal of 1222726 is 6272221.

It is an interprime number because it is at equal distance from previous prime (1222723) and next prime (1222729).

It is a junction number, because it is equal to n+sod(n) for n = 1222697 and 1222706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^1222726 is an apocalyptic number.

1222726 is a deficient number, since it is larger than the sum of its proper divisors (793274).

1222726 is a wasteful number, since it uses less digits than its factorization.

1222726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443.

The product of its digits is 672, while the sum is 22.

The square root of 1222726 is about 1105.7694153846. The cubic root of 1222726 is about 106.9324988413.

Adding to 1222726 its reverse (6272221), we get a palindrome (7494947).

The spelling of 1222726 in words is "one million, two hundred twenty-two thousand, seven hundred twenty-six".