1222736 has 10 divisors (see below), whose sum is σ = 2369082. Its totient is φ = 611360.

The previous prime is 1222729. The next prime is 1222751. The reversal of 1222736 is 6372221.

It can be written as a sum of positive squares in only one way, i.e., 732736 + 490000 = 856^2 + 700^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38195 + ... + 38226.

2^1222736 is an apocalyptic number.

1222736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222736 is a deficient number, since it is larger than the sum of its proper divisors (1146346).

1222736 is an equidigital number, since it uses as much as digits as its factorization.

1222736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76429 (or 76423 counting only the distinct ones).

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

The square root of 1222736 is about 1105.7739371137. The cubic root of 1222736 is about 106.9327903544.

Adding to 1222736 its reverse (6372221), we get a palindrome (7594957).

The spelling of 1222736 in words is "one million, two hundred twenty-two thousand, seven hundred thirty-six".