20612036 has 12 divisors (see below), whose sum is σ = 37969680. Its totient is φ = 9763560.

The previous prime is 20612027. The next prime is 20612089. The reversal of 20612036 is 63021602.

It is a junction number, because it is equal to n+sod(n) for n = 20611999 and 20612017.

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 3 ways as a sum of consecutive naturals, for example, 135530 + ... + 135681.

It is an arithmetic number, because the mean of its divisors is an integer number (3164140).

Almost surely, 2^20612036 is an apocalyptic number.

It is an amenable number.

20612036 is a deficient number, since it is larger than the sum of its proper divisors (17357644).

20612036 is a wasteful number, since it uses less digits than its factorization.

20612036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271234 (or 271232 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20612036 is about 4540.0480173672. The cubic root of 20612036 is about 274.1828569669.

Adding to 20612036 its reverse (63021602), we get a palindrome (83633638).

The spelling of 20612036 in words is "twenty million, six hundred twelve thousand, thirty-six".