623222064 has 60 divisors (see below), whose sum is σ = 1804311600. Its totient is φ = 200575872.

The previous prime is 623222051. The next prime is 623222087. The reversal of 623222064 is 460222326.

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 11 ways as a sum of consecutive naturals, for example, 70444 + ... + 78795.

It is an arithmetic number, because the mean of its divisors is an integer number (30071860).

Almost surely, 2^623222064 is an apocalyptic number.

It is an amenable number.

623222064 is an abundant number, since it is smaller than the sum of its proper divisors (1181089536).

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

623222064 is a wasteful number, since it uses less digits than its factorization.

623222064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149282 (or 149273 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 623222064 is about 24964.4159555156. The cubic root of 623222064 is about 854.1764759511.

The spelling of 623222064 in words is "six hundred twenty-three million, two hundred twenty-two thousand, sixty-four".