20004005442 has 8 divisors (see below), whose sum is σ = 40008010896. Its totient is φ = 6668001812.

The previous prime is 20004005423. The next prime is 20004005453. The reversal of 20004005442 is 24450040002.

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

20004005442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667000448 + ... + 1667000459.

It is an arithmetic number, because the mean of its divisors is an integer number (5001001362).

Almost surely, 2^20004005442 is an apocalyptic number.

20004005442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20004005442 is a wasteful number, since it uses less digits than its factorization.

20004005442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334000912.

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 20004005442 its reverse (24450040002), we get a palindrome (44454045444).

The spelling of 20004005442 in words is "twenty billion, four million, five thousand, four hundred forty-two".