20206486 has 8 divisors (see below), whose sum is σ = 30513600. Its totient is φ = 10035288.

The previous prime is 20206453. The next prime is 20206493. The reversal of 20206486 is 68460202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33606 + ... + 34201.

It is an arithmetic number, because the mean of its divisors is an integer number (3814200).

Almost surely, 2^20206486 is an apocalyptic number.

20206486 is a deficient number, since it is larger than the sum of its proper divisors (10307114).

20206486 is a wasteful number, since it uses less digits than its factorization.

20206486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67958.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20206486 is about 4495.1625109667. The cubic root of 20206486 is about 272.3727138889.

Adding to 20206486 its reverse (68460202), we get a palindrome (88666688).

The spelling of 20206486 in words is "twenty million, two hundred six thousand, four hundred eighty-six".