22390464238 has 8 divisors (see below), whose sum is σ = 33593151888. Its totient is φ = 11192746944.

The previous prime is 22390464233. The next prime is 22390464247. The reversal of 22390464238 is 83246409322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22390464194 and 22390464203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22390464233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231306 + ... + 1249357.

It is an arithmetic number, because the mean of its divisors is an integer number (4199143986).

Almost surely, 2^22390464238 is an apocalyptic number.

22390464238 is a deficient number, since it is larger than the sum of its proper divisors (11202687650).

22390464238 is a wasteful number, since it uses less digits than its factorization.

22390464238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485178.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 22390464238 in words is "twenty-two billion, three hundred ninety million, four hundred sixty-four thousand, two hundred thirty-eight".