20612882 has 4 divisors (see below), whose sum is σ = 30919326. Its totient is φ = 10306440.

The previous prime is 20612869. The next prime is 20612903. The reversal of 20612882 is 28821602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28821602 = 2 ⋅14410801.

It can be written as a sum of positive squares in only one way, i.e., 16248961 + 4363921 = 4031^2 + 2089^2 .

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 as a sum of consecutive naturals, namely, 5153219 + ... + 5153222.

Almost surely, 2^20612882 is an apocalyptic number.

20612882 is a deficient number, since it is larger than the sum of its proper divisors (10306444).

20612882 is a wasteful number, since it uses less digits than its factorization.

20612882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306443.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 20612882 is about 4540.1411872320. The cubic root of 20612882 is about 274.1866081009.

The spelling of 20612882 in words is "twenty million, six hundred twelve thousand, eight hundred eighty-two".