20104295 has 8 divisors (see below), whose sum is σ = 24270624. Its totient is φ = 15986464.

The previous prime is 20104241. The next prime is 20104307. The reversal of 20104295 is 59240102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20104295 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 20104295.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11204 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (3033828).

Almost surely, 2^20104295 is an apocalyptic number.

20104295 is a deficient number, since it is larger than the sum of its proper divisors (4166329).

20104295 is a wasteful number, since it uses less digits than its factorization.

20104295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24249.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20104295 is about 4483.7813282987. The cubic root of 20104295 is about 271.9127775047.

Adding to 20104295 its reverse (59240102), we get a palindrome (79344397).

The spelling of 20104295 in words is "twenty million, one hundred four thousand, two hundred ninety-five".