20206484 has 6 divisors (see below), whose sum is σ = 35361354. Its totient is φ = 10103240.

The previous prime is 20206453. The next prime is 20206493. The reversal of 20206484 is 48460202.

It can be written as a sum of positive squares in only one way, i.e., 17556100 + 2650384 = 4190^2 + 1628^2 .

It is a congruent number.

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, 2525807 + ... + 2525814.

It is an arithmetic number, because the mean of its divisors is an integer number (5893559).

Almost surely, 2^20206484 is an apocalyptic number.

It is an amenable number.

20206484 is a deficient number, since it is larger than the sum of its proper divisors (15154870).

20206484 is a wasteful number, since it uses less digits than its factorization.

20206484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051625 (or 5051623 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 20206484 is about 4495.1622885053. The cubic root of 20206484 is about 272.3727049025.

Adding to 20206484 its reverse (48460202), we get a palindrome (68666686).

The spelling of 20206484 in words is "twenty million, two hundred six thousand, four hundred eighty-four".