623840768 has 40 divisors (see below), whose sum is σ = 1253846088. Its totient is φ = 310073344.

The previous prime is 623840759. The next prime is 623840797. The reversal of 623840768 is 867048326.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85055 + ... + 92097.

Almost surely, 2^623840768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623840768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626923044).

623840768 is an abundant number, since it is smaller than the sum of its proper divisors (630005320).

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

623840768 is an equidigital number, since it uses as much as digits as its factorization.

623840768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234 (or 7218 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 623840768 is about 24976.8045994679. The cubic root of 623840768 is about 854.4590438326.

The spelling of 623840768 in words is "six hundred twenty-three million, eight hundred forty thousand, seven hundred sixty-eight".