623306880 has 256 divisors, whose sum is σ = 2523398400. Its totient is φ = 142442496.

The previous prime is 623306867. The next prime is 623306881. The reversal of 623306880 is 88603326.

It is a super-2 number, since 2×623306880² = 777022933310668800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623306881) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 118384 + ... + 123536.

It is an arithmetic number, because the mean of its divisors is an integer number (9857025).

Almost surely, 2^623306880 is an apocalyptic number.

623306880 is a gapful number since it is divisible by the number (60) 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 623306880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261699200).

623306880 is an abundant number, since it is smaller than the sum of its proper divisors (1900091520).

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

623306880 is a wasteful number, since it uses less digits than its factorization.

623306880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188 (or 5170 counting only the distinct ones).

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

The square root of 623306880 is about 24966.1146356416. The cubic root of 623306880 is about 854.2152232665.

The spelling of 623306880 in words is "six hundred twenty-three million, three hundred six thousand, eight hundred eighty".