20039912 has 16 divisors (see below), whose sum is σ = 37622340. Its totient is φ = 10007296.

The previous prime is 20039893. The next prime is 20039933. The reversal of 20039912 is 21993002.

It can be written as a sum of positive squares in 2 ways, for example, as 19483396 + 556516 = 4414^2 + 746^2 .

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, 11618 + ... + 13230.

Almost surely, 2^20039912 is an apocalyptic number.

It is an amenable number.

20039912 is a deficient number, since it is larger than the sum of its proper divisors (17582428).

20039912 is a wasteful number, since it uses less digits than its factorization.

20039912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172 (or 3168 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 20039912 is about 4476.5960282340. The cubic root of 20039912 is about 271.6222047418.

The spelling of 20039912 in words is "twenty million, thirty-nine thousand, nine hundred twelve".