1223241560 has 64 divisors (see below), whose sum is σ = 2829617280. Its totient is φ = 475637760.

The previous prime is 1223241559. The next prime is 1223241563. The reversal of 1223241560 is 651423221.

It is a happy number.

It is a super-2 number, since 2×1223241560² = 2992639828222467200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223241563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512129 + ... + 514511.

It is an arithmetic number, because the mean of its divisors is an integer number (44212770).

Almost surely, 2^1223241560 is an apocalyptic number.

1223241560 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 1223241560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414808640).

1223241560 is an abundant number, since it is smaller than the sum of its proper divisors (1606375720).

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

1223241560 is a wasteful number, since it uses less digits than its factorization.

1223241560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1223241560 is about 34974.8704071938. The cubic root of 1223241560 is about 1069.4752602163.

Adding to 1223241560 its reverse (651423221), we get a palindrome (1874664781).

The spelling of 1223241560 in words is "one billion, two hundred twenty-three million, two hundred forty-one thousand, five hundred sixty".