1223583880 has 16 divisors (see below), whose sum is σ = 2753063820. Its totient is φ = 489433536.

The previous prime is 1223583827. The next prime is 1223583887. The reversal of 1223583880 is 883853221.

It can be written as a sum of positive squares in 2 ways, for example, as 1187078116 + 36505764 = 34454^2 + 6042^2 .

It is a super-2 number, since 2×1223583880² = 2994315022791708800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 30589597 = 1223583880 / (1 + 2 + 2 + 3 + 5 + 8 + 3 + 8 + 8 + 0).

It is not an unprimeable number, because it can be changed into a prime (1223583887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15294759 + ... + 15294838.

Almost surely, 2^1223583880 is an apocalyptic number.

1223583880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223583880 is an abundant number, since it is smaller than the sum of its proper divisors (1529479940).

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

1223583880 is a wasteful number, since it uses less digits than its factorization.

1223583880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30589608 (or 30589604 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 1223583880 is about 34979.7638642687. The cubic root of 1223583880 is about 1069.5750139193.

The spelling of 1223583880 in words is "one billion, two hundred twenty-three million, five hundred eighty-three thousand, eight hundred eighty".