22040402406 has 48 divisors (see below), whose sum is σ = 48932344944. Its totient is φ = 6612760000.

The previous prime is 22040402389. The next prime is 22040402429. The reversal of 22040402406 is 60420404022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76965 + ... + 223616.

It is an arithmetic number, because the mean of its divisors is an integer number (1019423853).

Almost surely, 2^22040402406 is an apocalyptic number.

22040402406 is an abundant number, since it is smaller than the sum of its proper divisors (26891942538).

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

22040402406 is a wasteful number, since it uses less digits than its factorization.

22040402406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300709 (or 300698 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22040402406 its reverse (60420404022), we get a palindrome (82460806428).

The spelling of 22040402406 in words is "twenty-two billion, forty million, four hundred two thousand, four hundred six".