1223936 has 36 divisors (see below), whose sum is σ = 2796192. Its totient is φ = 523776.

The previous prime is 1223921. The next prime is 1223939. The reversal of 1223936 is 6393221.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223939) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1451 + ... + 2133.

It is an arithmetic number, because the mean of its divisors is an integer number (77672).

2^1223936 is an apocalyptic number.

1223936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398096).

1223936 is an abundant number, since it is smaller than the sum of its proper divisors (1572256).

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

1223936 is an frugal number, since it uses more digits than its factorization.

1223936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 692 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

The square root of 1223936 is about 1106.3164104360. The cubic root of 1223936 is about 106.9677603980.

The spelling of 1223936 in words is "one million, two hundred twenty-three thousand, nine hundred thirty-six".