622505136 has 80 divisors (see below), whose sum is σ = 1762030080. Its totient is φ = 187810560.

The previous prime is 622505123. The next prime is 622505137. The reversal of 622505136 is 631505226.

It is not an unprimeable number, because it can be changed into a prime (622505137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123726 + ... + 128658.

It is an arithmetic number, because the mean of its divisors is an integer number (22025376).

Almost surely, 2^622505136 is an apocalyptic number.

622505136 is a gapful number since it is divisible by the number (66) 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 622505136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881015040).

622505136 is an abundant number, since it is smaller than the sum of its proper divisors (1139524944).

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

622505136 is a wasteful number, since it uses less digits than its factorization.

622505136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194 (or 5188 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 622505136 is about 24950.0528255954. The cubic root of 622505136 is about 853.8488142513.

The spelling of 622505136 in words is "six hundred twenty-two million, five hundred five thousand, one hundred thirty-six".