1223384904 has 256 divisors, whose sum is σ = 4099276800. Its totient is φ = 330511104.

The previous prime is 1223384893. The next prime is 1223384917. The reversal of 1223384904 is 4094833221.

1223384904 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4416414 + ... + 4416690.

It is an arithmetic number, because the mean of its divisors is an integer number (16012800).

Almost surely, 2^1223384904 is an apocalyptic number.

1223384904 is a gapful number since it is divisible by the number (14) 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 1223384904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049638400).

1223384904 is an abundant number, since it is smaller than the sum of its proper divisors (2875891896).

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

1223384904 is a wasteful number, since it uses less digits than its factorization.

1223384904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1223384904 is about 34976.9195899239. The cubic root of 1223384904 is about 1069.5170336155.

The spelling of 1223384904 in words is "one billion, two hundred twenty-three million, three hundred eighty-four thousand, nine hundred four".