622607720 has 96 divisors (see below), whose sum is σ = 1682311680. Its totient is φ = 206559360.

The previous prime is 622607717. The next prime is 622607737. The reversal of 622607720 is 27706226.

622607720 = 3578² + 3579² + ... + 3625².

It is a hoax number, since the sum of its digits (32) 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 23 ways as a sum of consecutive naturals, for example, 55637 + ... + 65883.

It is an arithmetic number, because the mean of its divisors is an integer number (17524080).

Almost surely, 2^622607720 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 622607720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841155840).

622607720 is an abundant number, since it is smaller than the sum of its proper divisors (1059703960).

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

622607720 is a wasteful number, since it uses less digits than its factorization.

622607720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303 (or 10292 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 622607720 is about 24952.1085281385. The cubic root of 622607720 is about 853.8957142208.

The spelling of 622607720 in words is "six hundred twenty-two million, six hundred seven thousand, seven hundred twenty".