22234440406 has 4 divisors (see below), whose sum is σ = 33351660612. Its totient is φ = 11117220202.

The previous prime is 22234440311. The next prime is 22234440491. The reversal of 22234440406 is 60404443222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60404443222 = 2 ⋅30202221611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5558610100 + ... + 5558610103.

It is an arithmetic number, because the mean of its divisors is an integer number (8337915153).

Almost surely, 2^22234440406 is an apocalyptic number.

22234440406 is a deficient number, since it is larger than the sum of its proper divisors (11117220206).

22234440406 is a wasteful number, since it uses less digits than its factorization.

22234440406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117220205.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 22234440406 its reverse (60404443222), we get a palindrome (82638883628).

The spelling of 22234440406 in words is "twenty-two billion, two hundred thirty-four million, four hundred forty thousand, four hundred six".