1223282736 has 200 divisors, whose sum is σ = 4038116544. Its totient is φ = 354170880.

The previous prime is 1223282713. The next prime is 1223282737. The reversal of 1223282736 is 6372823221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1223282736.

It is not an unprimeable number, because it can be changed into a prime (1223282737) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 284281 + ... + 288551.

Almost surely, 2^1223282736 is an apocalyptic number.

1223282736 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 1223282736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2019058272).

1223282736 is an abundant number, since it is smaller than the sum of its proper divisors (2814833808).

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

1223282736 is a wasteful number, since it uses less digits than its factorization.

1223282736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321 (or 4306 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 1223282736 is about 34975.4590534563. The cubic root of 1223282736 is about 1069.4872600864.

The spelling of 1223282736 in words is "one billion, two hundred twenty-three million, two hundred eighty-two thousand, seven hundred thirty-six".