622398000 has 480 divisors, whose sum is σ = 2447789760. Its totient is φ = 135475200.

The previous prime is 622397977. The next prime is 622398001. The reversal of 622398000 is 893226.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (622398001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8525964 + ... + 8526036.

It is an arithmetic number, because the mean of its divisors is an integer number (5099562).

Almost surely, 2^622398000 is an apocalyptic number.

622398000 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 622398000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223894880).

622398000 is an abundant number, since it is smaller than the sum of its proper divisors (1825391760).

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

622398000 is a wasteful number, since it uses less digits than its factorization.

622398000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 622398000 is about 24947.9057237276. The cubic root of 622398000 is about 853.7998276702.

The spelling of 622398000 in words is "six hundred twenty-two million, three hundred ninety-eight thousand".