622799244 has 144 divisors (see below), whose sum is σ = 1747811520. Its totient is φ = 186278400.

The previous prime is 622799201. The next prime is 622799249. The reversal of 622799244 is 442997226.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 622799244.

It is not an unprimeable number, because it can be changed into a prime (622799249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 888094 + ... + 888794.

It is an arithmetic number, because the mean of its divisors is an integer number (12137580).

Almost surely, 2^622799244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622799244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873905760).

622799244 is an abundant number, since it is smaller than the sum of its proper divisors (1125012276).

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

622799244 is a wasteful number, since it uses less digits than its factorization.

622799244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 795 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 622799244 is about 24955.9460650162. The cubic root of 622799244 is about 853.9832625283.

The spelling of 622799244 in words is "six hundred twenty-two million, seven hundred ninety-nine thousand, two hundred forty-four".