20071882 has 4 divisors (see below), whose sum is σ = 30107826. Its totient is φ = 10035940.

The previous prime is 20071873. The next prime is 20071901. The reversal of 20071882 is 28817002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28817002 = 2 ⋅14408501.

It can be written as a sum of positive squares in only one way, i.e., 17884441 + 2187441 = 4229^2 + 1479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20071882.

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 as a sum of consecutive naturals, namely, 5017969 + ... + 5017972.

Almost surely, 2^20071882 is an apocalyptic number.

20071882 is a deficient number, since it is larger than the sum of its proper divisors (10035944).

20071882 is a wasteful number, since it uses less digits than its factorization.

20071882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10035943.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 20071882 is about 4480.1653987325. The cubic root of 20071882 is about 271.7665691181.

Adding to 20071882 its reverse (28817002), we get a palindrome (48888884).

The spelling of 20071882 in words is "twenty million, seventy-one thousand, eight hundred eighty-two".