20433442404 has 24 divisors (see below), whose sum is σ = 48840912288. Its totient is φ = 6645021760.

The previous prime is 20433442391. The next prime is 20433442429. The reversal of 20433442404 is 40424433402.

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 in 7 ways as a sum of consecutive naturals, for example, 20765202 + ... + 20766185.

It is an arithmetic number, because the mean of its divisors is an integer number (2035038012).

Almost surely, 2^20433442404 is an apocalyptic number.

It is an amenable number.

20433442404 is an abundant number, since it is smaller than the sum of its proper divisors (28407469884).

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

20433442404 is a wasteful number, since it uses less digits than its factorization.

20433442404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41531435 (or 41531433 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 20433442404 its reverse (40424433402), we get a palindrome (60857875806).

The spelling of 20433442404 in words is "twenty billion, four hundred thirty-three million, four hundred forty-two thousand, four hundred four".