20402222404 has 24 divisors (see below), whose sum is σ = 37272755520. Its totient is φ = 9753257184.

The previous prime is 20402222369. The next prime is 20402222413. The reversal of 20402222404 is 40422220402.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164407 + ... + 260449.

It is an arithmetic number, because the mean of its divisors is an integer number (1553031480).

Almost surely, 2^20402222404 is an apocalyptic number.

It is an amenable number.

20402222404 is a deficient number, since it is larger than the sum of its proper divisors (16870533116).

20402222404 is a wasteful number, since it uses less digits than its factorization.

20402222404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98379 (or 98377 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20402222404 its reverse (40422220402), we get a palindrome (60824442806).

The spelling of 20402222404 in words is "twenty billion, four hundred two million, two hundred twenty-two thousand, four hundred four".