20004004433 has 8 divisors (see below), whose sum is σ = 22876047552. Its totient is φ = 17135543376.

The previous prime is 20004004393. The next prime is 20004004487. The reversal of 20004004433 is 33440040002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20004004433 - 2¹⁸ = 20003742289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004004133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883535 + ... + 905892.

It is an arithmetic number, because the mean of its divisors is an integer number (2859505944).

Almost surely, 2^20004004433 is an apocalyptic number.

It is an amenable number.

20004004433 is a deficient number, since it is larger than the sum of its proper divisors (2872043119).

20004004433 is a wasteful number, since it uses less digits than its factorization.

20004004433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791031.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20004004433 its reverse (33440040002), we get a palindrome (53444044435).

The spelling of 20004004433 in words is "twenty billion, four million, four thousand, four hundred thirty-three".