622731616 has 96 divisors (see below), whose sum is σ = 1400263200. Its totient is φ = 270520320.

The previous prime is 622731589. The next prime is 622731617. The reversal of 622731616 is 616137226.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622731617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493995 + ... + 495253.

It is an arithmetic number, because the mean of its divisors is an integer number (14586075).

Almost surely, 2^622731616 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 622731616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700131600).

622731616 is an abundant number, since it is smaller than the sum of its proper divisors (777531584).

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

622731616 is a wasteful number, since it uses less digits than its factorization.

622731616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1344 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 622731616 is about 24954.5910806008. The cubic root of 622731616 is about 853.9523508709.

The spelling of 622731616 in words is "six hundred twenty-two million, seven hundred thirty-one thousand, six hundred sixteen".