20613104 has 20 divisors (see below), whose sum is σ = 40013064. Its totient is φ = 10287168.

The previous prime is 20613097. The next prime is 20613127. The reversal of 20613104 is 40131602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11774 + ... + 13410.

Almost surely, 2^20613104 is an apocalyptic number.

It is an amenable number.

20613104 is a deficient number, since it is larger than the sum of its proper divisors (19399960).

20613104 is a wasteful number, since it uses less digits than its factorization.

20613104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20613104 is about 4540.1656357450. The cubic root of 20613104 is about 274.1875924240.

Adding to 20613104 its reverse (40131602), we get a palindrome (60744706).

The spelling of 20613104 in words is "twenty million, six hundred thirteen thousand, one hundred four".