20005440230 has 8 divisors (see below), whose sum is σ = 36009792432. Its totient is φ = 8002176088.

The previous prime is 20005440197. The next prime is 20005440239. The reversal of 20005440230 is 3204450002.

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

It is a super-2 number, since 2×20005440230² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005440239) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1000272002 + ... + 1000272021.

It is an arithmetic number, because the mean of its divisors is an integer number (4501224054).

Almost surely, 2^20005440230 is an apocalyptic number.

20005440230 is a deficient number, since it is larger than the sum of its proper divisors (16004352202).

20005440230 is a wasteful number, since it uses less digits than its factorization.

20005440230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000544030.

The product of its (nonzero) digits is 960, while the sum is 20.

Adding to 20005440230 its reverse (3204450002), we get a palindrome (23209890232).

The spelling of 20005440230 in words is "twenty billion, five million, four hundred forty thousand, two hundred thirty".