20104612 has 12 divisors (see below), whose sum is σ = 38381616. Its totient is φ = 9138440.

The previous prime is 20104589. The next prime is 20104619. The reversal of 20104612 is 21640102.

It is not an unprimeable number, because it can be changed into a prime (20104619) 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 3 ways as a sum of consecutive naturals, for example, 228418 + ... + 228505.

It is an arithmetic number, because the mean of its divisors is an integer number (3198468).

Almost surely, 2^20104612 is an apocalyptic number.

20104612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20104612 is a deficient number, since it is larger than the sum of its proper divisors (18277004).

20104612 is a wasteful number, since it uses less digits than its factorization.

20104612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456938 (or 456936 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20104612 is about 4483.8166777869. The cubic root of 20104612 is about 271.9142066504.

Adding to 20104612 its reverse (21640102), we get a palindrome (41744714).

The spelling of 20104612 in words is "twenty million, one hundred four thousand, six hundred twelve".