622064688 has 80 divisors (see below), whose sum is σ = 1842786816. Its totient is φ = 177131520.

The previous prime is 622064581. The next prime is 622064711. The reversal of 622064688 is 886460226.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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, 101520 + ... + 107472.

Almost surely, 2^622064688 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 622064688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921393408).

622064688 is an abundant number, since it is smaller than the sum of its proper divisors (1220722128).

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

622064688 is a wasteful number, since it uses less digits than its factorization.

622064688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282 (or 6276 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 622064688 is about 24941.2246692098. The cubic root of 622064688 is about 853.6473890142.

The spelling of 622064688 in words is "six hundred twenty-two million, sixty-four thousand, six hundred eighty-eight".