623386368 has 216 divisors, whose sum is σ = 2035627776. Its totient is φ = 188697600.

The previous prime is 623386363. The next prime is 623386381. The reversal of 623386368 is 863683326.

623386368 is a `hidden beast` number, since 6 + 2 + 3 + 3 + 8 + 636 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a super-2 number, since 2×623386368² = 777221127616462848, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623386363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 683833 + ... + 684743.

Almost surely, 2^623386368 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 623386368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017813888).

623386368 is an abundant number, since it is smaller than the sum of its proper divisors (1412241408).

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

623386368 is an equidigital number, since it uses as much as digits as its factorization.

623386368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 927 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 623386368 is about 24967.7065026005. The cubic root of 623386368 is about 854.2515333494.

The spelling of 623386368 in words is "six hundred twenty-three million, three hundred eighty-six thousand, three hundred sixty-eight".