622244826840 has 256 divisors, whose sum is σ = 2299140587520. Its totient is φ = 131194183680.

The previous prime is 622244826829. The next prime is 622244826871. The reversal of 622244826840 is 48628442226.

It is a self number, because there is not a number n which added to its sum of digits gives 622244826840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16043952 + ... + 16082688.

It is an arithmetic number, because the mean of its divisors is an integer number (8981017920).

Almost surely, 2^622244826840 is an apocalyptic number.

622244826840 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 622244826840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149570293760).

622244826840 is an abundant number, since it is smaller than the sum of its proper divisors (1676895760680).

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

622244826840 is a wasteful number, since it uses less digits than its factorization.

622244826840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40242 (or 40238 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 48.

The spelling of 622244826840 in words is "six hundred twenty-two billion, two hundred forty-four million, eight hundred twenty-six thousand, eight hundred forty".