1223361600 has 168 divisors, whose sum is σ = 4032369888. Its totient is φ = 324710400.

The previous prime is 1223361589. The next prime is 1223361611. The reversal of 1223361600 is 61633221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1223361589) and next prime (1223361611).

It is a super-2 number, since 2×1223361600² = 2993227208709120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348347 + ... + 1349253.

Almost surely, 2^1223361600 is an apocalyptic number.

1223361600 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 1223361600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2016184944).

1223361600 is an abundant number, since it is smaller than the sum of its proper divisors (2809008288).

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

1223361600 is a wasteful number, since it uses less digits than its factorization.

1223361600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 1223361600 is about 34976.5864543697. The cubic root of 1223361600 is about 1069.5102425712.

Adding to 1223361600 its reverse (61633221), we get a palindrome (1284994821).

The spelling of 1223361600 in words is "one billion, two hundred twenty-three million, three hundred sixty-one thousand, six hundred".