1223453880 has 192 divisors, whose sum is σ = 4353354720. Its totient is φ = 295526400.

The previous prime is 1223453873. The next prime is 1223453911. The reversal of 1223453880 is 883543221.

1223453880 is a `hidden beast` number, since 12 + 2 + 34 + 538 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2062864 + ... + 2063456.

Almost surely, 2^1223453880 is an apocalyptic number.

1223453880 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 1223453880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176677360).

1223453880 is an abundant number, since it is smaller than the sum of its proper divisors (3129900840).

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

1223453880 is a wasteful number, since it uses less digits than its factorization.

1223453880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 1223453880 is about 34977.9055976769. The cubic root of 1223453880 is about 1069.5371334822.

The spelling of 1223453880 in words is "one billion, two hundred twenty-three million, four hundred fifty-three thousand, eight hundred eighty".