22004462478 has 16 divisors (see below), whose sum is σ = 44029544400. Its totient is φ = 7331384256.

The previous prime is 22004462407. The next prime is 22004462479. The reversal of 22004462478 is 87426440022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004462479) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 845253 + ... + 870896.

It is an arithmetic number, because the mean of its divisors is an integer number (2751846525).

Almost surely, 2^22004462478 is an apocalyptic number.

22004462478 is an abundant number, since it is smaller than the sum of its proper divisors (22025081922).

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

22004462478 is a wasteful number, since it uses less digits than its factorization.

22004462478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718291.

The product of its (nonzero) digits is 172032, while the sum is 39.

The spelling of 22004462478 in words is "twenty-two billion, four million, four hundred sixty-two thousand, four hundred seventy-eight".