622744320 has 288 divisors, whose sum is σ = 2267564544. Its totient is φ = 144179200.

The previous prime is 622744307. The next prime is 622744321. The reversal of 622744320 is 23447226.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622744321) 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, 971200 + ... + 971840.

It is an arithmetic number, because the mean of its divisors is an integer number (7873488).

Almost surely, 2^622744320 is an apocalyptic number.

622744320 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 622744320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133782272).

622744320 is an abundant number, since it is smaller than the sum of its proper divisors (1644820224).

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

622744320 is a wasteful number, since it uses less digits than its factorization.

622744320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 622744320 is about 24954.8456216423. The cubic root of 622744320 is about 853.9581578331.

The spelling of 622744320 in words is "six hundred twenty-two million, seven hundred forty-four thousand, three hundred twenty".