622312081 has 24 divisors (see below), whose sum is σ = 694419264. Its totient is φ = 556512000.

The previous prime is 622312069. The next prime is 622312087. The reversal of 622312081 is 180213226.

622312081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 622312081 - 2¹⁷ = 622181009 is a prime.

It is a super-2 number, since 2×622312081² = 774544652317101122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (622312087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1668211 + ... + 1668583.

It is an arithmetic number, because the mean of its divisors is an integer number (28934136).

Almost surely, 2^622312081 is an apocalyptic number.

It is an amenable number.

622312081 is a deficient number, since it is larger than the sum of its proper divisors (72107183).

622312081 is a wasteful number, since it uses less digits than its factorization.

622312081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 622312081 is about 24946.1836961087. The cubic root of 622312081 is about 853.7605382320.

The spelling of 622312081 in words is "six hundred twenty-two million, three hundred twelve thousand, eighty-one".