1223726 has 12 divisors (see below), whose sum is σ = 2135448. Its totient is φ = 524412.

The previous prime is 1223723. The next prime is 1223731. The reversal of 1223726 is 6273221.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6146 + ... + 6341.

It is an arithmetic number, because the mean of its divisors is an integer number (177954).

2^1223726 is an apocalyptic number.

1223726 is a deficient number, since it is larger than the sum of its proper divisors (911722).

1223726 is a wasteful number, since it uses less digits than its factorization.

1223726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503 (or 12496 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 1223726 is about 1106.2214968079. The cubic root of 1223726 is about 106.9616422909.

Adding to 1223726 its reverse (6273221), we get a palindrome (7496947).

The spelling of 1223726 in words is "one million, two hundred twenty-three thousand, seven hundred twenty-six".