20071912 has 16 divisors (see below), whose sum is σ = 43011360. Its totient is φ = 8602224.

The previous prime is 20071907. The next prime is 20071921. The reversal of 20071912 is 21917002.

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, 179158 + ... + 179269.

It is an arithmetic number, because the mean of its divisors is an integer number (2688210).

Almost surely, 2^20071912 is an apocalyptic number.

It is an amenable number.

20071912 is an abundant number, since it is smaller than the sum of its proper divisors (22939448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20071912 is a wasteful number, since it uses less digits than its factorization.

20071912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358440 (or 358436 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 20071912 is about 4480.1687468219. The cubic root of 20071912 is about 271.7667045147.

Adding to 20071912 its reverse (21917002), we get a palindrome (41988914).

The spelling of 20071912 in words is "twenty million, seventy-one thousand, nine hundred twelve".