20482187 has 4 divisors (see below), whose sum is σ = 22344216. Its totient is φ = 18620160.

The previous prime is 20482183. The next prime is 20482223. The reversal of 20482187 is 78128402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20482187 - 2² = 20482183 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20482183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930998 + ... + 931019.

It is an arithmetic number, because the mean of its divisors is an integer number (5586054).

Almost surely, 2^20482187 is an apocalyptic number.

20482187 is a deficient number, since it is larger than the sum of its proper divisors (1862029).

20482187 is a wasteful number, since it uses less digits than its factorization.

20482187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862028.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 20482187 is about 4525.7250247888. The cubic root of 20482187 is about 273.6058899690.

The spelling of 20482187 in words is "twenty million, four hundred eighty-two thousand, one hundred eighty-seven".