623322000 has 640 divisors, whose sum is σ = 2729825280. Its totient is φ = 132710400.

The previous prime is 623321957. The next prime is 623322001. The reversal of 623322000 is 223326.

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

It is not an unprimeable number, because it can be changed into a prime (623322001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6425952 + ... + 6426048.

It is an arithmetic number, because the mean of its divisors is an integer number (4265352).

Almost surely, 2^623322000 is an apocalyptic number.

623322000 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 623322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364912640).

623322000 is an abundant number, since it is smaller than the sum of its proper divisors (2106503280).

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

623322000 is a wasteful number, since it uses less digits than its factorization.

623322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 131 counting only the distinct ones).

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

The square root of 623322000 is about 24966.4174442390. The cubic root of 623322000 is about 854.2221303135. Note that the first 3 decimals are identical.

Adding to 623322000 its reverse (223326), we get a palindrome (623545326).

The spelling of 623322000 in words is "six hundred twenty-three million, three hundred twenty-two thousand".