20041995 has 8 divisors (see below), whose sum is σ = 32067216. Its totient is φ = 10689056.

The previous prime is 20041981. The next prime is 20042041. The reversal of 20041995 is 59914002.

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 20041995 - 2⁸ = 20041739 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668052 + ... + 668081.

It is an arithmetic number, because the mean of its divisors is an integer number (4008402).

Almost surely, 2^20041995 is an apocalyptic number.

20041995 is a deficient number, since it is larger than the sum of its proper divisors (12025221).

20041995 is a wasteful number, since it uses less digits than its factorization.

20041995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336141.

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

The square root of 20041995 is about 4476.8286766415. The cubic root of 20041995 is about 271.6316154526.

Adding to 20041995 its reverse (59914002), we get a palindrome (79955997).

It can be divided in two parts, 200 and 41995, that added together give a triangular number (42195 = T₂₉₀).

The spelling of 20041995 in words is "twenty million, forty-one thousand, nine hundred ninety-five".