20205202 has 8 divisors (see below), whose sum is σ = 30341196. Its totient is φ = 10091472.

The previous prime is 20205193. The next prime is 20205223. The reversal of 20205202 is 20250202.

It can be written as a sum of positive squares in 2 ways, for example, as 17648401 + 2556801 = 4201^2 + 1599^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 3073 + ... + 7060.

Almost surely, 2^20205202 is an apocalyptic number.

20205202 is a deficient number, since it is larger than the sum of its proper divisors (10135994).

20205202 is a wasteful number, since it uses less digits than its factorization.

20205202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11132.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 20205202 is about 4495.0196884997. The cubic root of 20205202 is about 272.3669445537.

Adding to 20205202 its reverse (20250202), we get a palindrome (40455404).

The spelling of 20205202 in words is "twenty million, two hundred five thousand, two hundred two".