20234005 has 32 divisors (see below), whose sum is σ = 27819648. Its totient is φ = 13996800.

The previous prime is 20233999. The next prime is 20234009. The reversal of 20234005 is 50043202.

It is not a de Polignac number, because 20234005 - 2⁷ = 20233877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20234005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124054 + ... + 124216.

It is an arithmetic number, because the mean of its divisors is an integer number (869364).

Almost surely, 2^20234005 is an apocalyptic number.

It is an amenable number.

20234005 is a deficient number, since it is larger than the sum of its proper divisors (7585643).

20234005 is a wasteful number, since it uses less digits than its factorization.

20234005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20234005 is about 4498.2224266926. Note that the first 3 decimals coincide. The cubic root of 20234005 is about 272.4963049747.

Adding to 20234005 its reverse (50043202), we get a palindrome (70277207).

The spelling of 20234005 in words is "twenty million, two hundred thirty-four thousand, five".