623268 has 48 divisors (see below), whose sum is σ = 1680000. Its totient is φ = 199584.

The previous prime is 623263. The next prime is 623269. The reversal of 623268 is 862326.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (623261) by changing a digit.

623268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3033 + ... + 3231.

It is an arithmetic number, because the mean of its divisors is an integer number (35000).

2⁶²³²⁶⁸ 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 623268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840000).

623268 is an abundant number, since it is smaller than the sum of its proper divisors (1056732).

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

623268 is a wasteful number, since it uses less digits than its factorization.

623268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 233 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 623268 is about 789.4732421051. The cubic root of 623268 is about 85.4197461776.

The spelling of 623268 in words is "six hundred twenty-three thousand, two hundred sixty-eight".