623200320 has 168 divisors, whose sum is σ = 2153128536. Its totient is φ = 165445632.

The previous prime is 623200313. The next prime is 623200321. The reversal of 623200320 is 23002326.

623200320 is a `hidden beast` number, since 623 + 20 + 0 + 3 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4981824 + 618218496 = 2232^2 + 24864^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 623200293 and 623200302.

It is not an unprimeable number, because it can be changed into a prime (623200321) 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, 1016334 + ... + 1016946.

Almost surely, 2^623200320 is an apocalyptic number.

623200320 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 623200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076564268).

623200320 is an abundant number, since it is smaller than the sum of its proper divisors (1529928216).

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

623200320 is a wasteful number, since it uses less digits than its factorization.

623200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 623200320 is about 24963.9804518430. The cubic root of 623200320 is about 854.1665418626.

Adding to 623200320 its reverse (23002326), we get a palindrome (646202646).

The spelling of 623200320 in words is "six hundred twenty-three million, two hundred thousand, three hundred twenty".