1223323580 has 24 divisors (see below), whose sum is σ = 2569645680. Its totient is φ = 489202560.

The previous prime is 1223323579. The next prime is 1223323589. The reversal of 1223323580 is 853233221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223323589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127760 + ... + 137000.

It is an arithmetic number, because the mean of its divisors is an integer number (107068570).

Almost surely, 2^1223323580 is an apocalyptic number.

1223323580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223323580 is an abundant number, since it is smaller than the sum of its proper divisors (1346322100).

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

1223323580 is a wasteful number, since it uses less digits than its factorization.

1223323580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15869 (or 15867 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1223323580 is about 34976.0429437065. The cubic root of 1223323580 is about 1069.4991629360.

The spelling of 1223323580 in words is "one billion, two hundred twenty-three million, three hundred twenty-three thousand, five hundred eighty".