20940195 has 8 divisors (see below), whose sum is σ = 33504336. Its totient is φ = 11168096.

The previous prime is 20940193. The next prime is 20940203. The reversal of 20940195 is 59104902.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20940195 - 2¹ = 20940193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20940191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697992 + ... + 698021.

It is an arithmetic number, because the mean of its divisors is an integer number (4188042).

Almost surely, 2^20940195 is an apocalyptic number.

20940195 is a deficient number, since it is larger than the sum of its proper divisors (12564141).

20940195 is a wasteful number, since it uses less digits than its factorization.

20940195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396021.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 20940195 is about 4576.0457821136. The cubic root of 20940195 is about 275.6302678946.

It can be divided in two parts, 209 and 40195, that added together give a palindrome (40404).

The spelling of 20940195 in words is "twenty million, nine hundred forty thousand, one hundred ninety-five".