20356612 has 12 divisors (see below), whose sum is σ = 35861056. Its totient is φ = 10110600.

The previous prime is 20356607. The next prime is 20356627. The reversal of 20356612 is 21665302.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 16248 + ... + 17455.

Almost surely, 2^20356612 is an apocalyptic number.

It is an amenable number.

20356612 is a deficient number, since it is larger than the sum of its proper divisors (15504444).

20356612 is a wasteful number, since it uses less digits than its factorization.

20356612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33858 (or 33856 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20356612 is about 4511.8302273024. The cubic root of 20356612 is about 273.0455898494.

The spelling of 20356612 in words is "twenty million, three hundred fifty-six thousand, six hundred twelve".