622558530 has 192 divisors, whose sum is σ = 1899645696. Its totient is φ = 139776000.

The previous prime is 622558529. The next prime is 622558543. The reversal of 622558530 is 35855226.

It is a happy number.

622558530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1194670 + ... + 1195190.

It is an arithmetic number, because the mean of its divisors is an integer number (9893988).

Almost surely, 2^622558530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622558530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949822848).

622558530 is an abundant number, since it is smaller than the sum of its proper divisors (1277087166).

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

622558530 is a wasteful number, since it uses less digits than its factorization.

622558530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 622558530 is about 24951.1228204263. The cubic root of 622558530 is about 853.8732258840.

The spelling of 622558530 in words is "six hundred twenty-two million, five hundred fifty-eight thousand, five hundred thirty".