22395409906 has 8 divisors (see below), whose sum is σ = 34751498220. Its totient is φ = 10811577168.

The previous prime is 22395409747. The next prime is 22395409909. The reversal of 22395409906 is 60990459322.

It can be written as a sum of positive squares in 2 ways, for example, as 21332063025 + 1063346881 = 146055^2 + 32609^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22395409906.

It is not an unprimeable number, because it can be changed into a prime (22395409909) 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, 193063821 + ... + 193063936.

Almost surely, 2^22395409906 is an apocalyptic number.

22395409906 is a deficient number, since it is larger than the sum of its proper divisors (12356088314).

22395409906 is a wasteful number, since it uses less digits than its factorization.

22395409906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386127788.

The product of its (nonzero) digits is 1049760, while the sum is 49.

It can be divided in two parts, 2239 and 5409906, that added together give a palindrome (5412145).

The spelling of 22395409906 in words is "twenty-two billion, three hundred ninety-five million, four hundred nine thousand, nine hundred six".