20104461 has 48 divisors (see below), whose sum is σ = 33825792. Its totient is φ = 11404800.

The previous prime is 20104433. The next prime is 20104493. The reversal of 20104461 is 16440102.

20104461 is a `hidden beast` number, since 201 + 0 + 4 + 461 = 666.

It is not a de Polignac number, because 20104461 - 2⁵ = 20104429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104361) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 83301 + ... + 83541.

It is an arithmetic number, because the mean of its divisors is an integer number (704704).

Almost surely, 2^20104461 is an apocalyptic number.

It is an amenable number.

20104461 is a deficient number, since it is larger than the sum of its proper divisors (13721331).

20104461 is a wasteful number, since it uses less digits than its factorization.

20104461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20104461 is about 4483.7998394219. The cubic root of 20104461 is about 271.9135258920.

Adding to 20104461 its reverse (16440102), we get a palindrome (36544563).

The spelling of 20104461 in words is "twenty million, one hundred four thousand, four hundred sixty-one".