1223447800 has 24 divisors (see below), whose sum is σ = 2844516600. Its totient is φ = 489379040.

The previous prime is 1223447779. The next prime is 1223447801. The reversal of 1223447800 is 87443221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223447801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3058420 + ... + 3058819.

It is an arithmetic number, because the mean of its divisors is an integer number (118521525).

Almost surely, 2^1223447800 is an apocalyptic number.

1223447800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223447800 is an abundant number, since it is smaller than the sum of its proper divisors (1621068800).

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

1223447800 is a wasteful number, since it uses less digits than its factorization.

1223447800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117255 (or 6117246 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1223447800 is about 34977.8186855613. The cubic root of 1223447800 is about 1069.5353617776.

The spelling of 1223447800 in words is "one billion, two hundred twenty-three million, four hundred forty-seven thousand, eight hundred".