34020421005 has 16 divisors (see below), whose sum is σ = 54490175424. Its totient is φ = 18125057280.

The previous prime is 34020420991. The next prime is 34020421009. The reversal of 34020421005 is 50012402043.

It is not a de Polignac number, because 34020421005 - 2¹⁹ = 34019896717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34020421009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183276 + ... + 1211685.

It is an arithmetic number, because the mean of its divisors is an integer number (3405635964).

Almost surely, 2^34020421005 is an apocalyptic number.

It is an amenable number.

34020421005 is a deficient number, since it is larger than the sum of its proper divisors (20469754419).

34020421005 is a wasteful number, since it uses less digits than its factorization.

34020421005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395916.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 34020421005 its reverse (50012402043), we get a palindrome (84032823048).

The spelling of 34020421005 in words is "thirty-four billion, twenty million, four hundred twenty-one thousand, five".