20340038185 has 8 divisors (see below), whose sum is σ = 24414716736. Its totient is φ = 16267583280.

The previous prime is 20340038167. The next prime is 20340038203. The reversal of 20340038185 is 58183004302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20340038167) and next prime (20340038203).

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

It is not a de Polignac number, because 20340038185 - 2⁷ = 20340038057 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 20340038185.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 535719 + ... + 572428.

It is an arithmetic number, because the mean of its divisors is an integer number (3051839592).

Almost surely, 2^20340038185 is an apocalyptic number.

It is an amenable number.

20340038185 is a deficient number, since it is larger than the sum of its proper divisors (4074678551).

20340038185 is a wasteful number, since it uses less digits than its factorization.

20340038185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111823.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20340038185 in words is "twenty billion, three hundred forty million, thirty-eight thousand, one hundred eighty-five".