623222406 has 12 divisors (see below), whose sum is σ = 1350315252. Its totient is φ = 207740796.

The previous prime is 623222387. The next prime is 623222407. The reversal of 623222406 is 604222326.

623222406 is a `hidden beast` number, since 6 + 232 + 22 + 406 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 623222406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623222407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17311716 + ... + 17311751.

It is an arithmetic number, because the mean of its divisors is an integer number (112526271).

Almost surely, 2^623222406 is an apocalyptic number.

623222406 is an abundant number, since it is smaller than the sum of its proper divisors (727092846).

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

623222406 is a wasteful number, since it uses less digits than its factorization.

623222406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34623475 (or 34623472 counting only the distinct ones).

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

The square root of 623222406 is about 24964.4228052643. The cubic root of 623222406 is about 854.1766321973.

The spelling of 623222406 in words is "six hundred twenty-three million, two hundred twenty-two thousand, four hundred six".