20202956 has 12 divisors (see below), whose sum is σ = 35935200. Its totient is φ = 9935760.

The previous prime is 20202943. The next prime is 20202961. The reversal of 20202956 is 65920202.

It is a super-2 number, since 2×20202956² = 816318862275872, which contains 22 as substring.

It is a plaindrome in base 16.

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, 41156 + ... + 41643.

It is an arithmetic number, because the mean of its divisors is an integer number (2994600).

Almost surely, 2^20202956 is an apocalyptic number.

It is an amenable number.

20202956 is a deficient number, since it is larger than the sum of its proper divisors (15732244).

20202956 is a wasteful number, since it uses less digits than its factorization.

20202956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82864 (or 82862 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 20202956 is about 4494.7698495029. The cubic root of 20202956 is about 272.3568521226.

The spelling of 20202956 in words is "twenty million, two hundred two thousand, nine hundred fifty-six".