1223423600 has 120 divisors (see below), whose sum is σ = 3441425568. Its totient is φ = 409190400.

The previous prime is 1223423557. The next prime is 1223423627. The reversal of 1223423600 is 63243221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109472 + ... + 120128.

Almost surely, 2^1223423600 is an apocalyptic number.

1223423600 is a gapful number since it is divisible by the number (10) 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 1223423600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720712784).

1223423600 is an abundant number, since it is smaller than the sum of its proper divisors (2218001968).

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

1223423600 is a wasteful number, since it uses less digits than its factorization.

1223423600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10723 (or 10712 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1223423600 is about 34977.4727503289. The cubic root of 1223423600 is about 1069.5283098690.

Adding to 1223423600 its reverse (63243221), we get a palindrome (1286666821).

The spelling of 1223423600 in words is "one billion, two hundred twenty-three million, four hundred twenty-three thousand, six hundred".