1223823168 has 70 divisors (see below), whose sum is σ = 3627810626. Its totient is φ = 407939328.

The previous prime is 1223823157. The next prime is 1223823187. The reversal of 1223823168 is 8613283221.

It can be written as a sum of positive squares in only one way, i.e., 910108224 + 313714944 = 30168^2 + 17712^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 112855 + ... + 123222.

Almost surely, 2^1223823168 is an apocalyptic number.

1223823168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1223823168 is an abundant number, since it is smaller than the sum of its proper divisors (2403987458).

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

1223823168 is an equidigital number, since it uses as much as digits as its factorization.

1223823168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236101 (or 236082 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1223823168 is about 34983.1840746379. The cubic root of 1223823168 is about 1069.6447325516.

The spelling of 1223823168 in words is "one billion, two hundred twenty-three million, eight hundred twenty-three thousand, one hundred sixty-eight".