20771282 has 16 divisors (see below), whose sum is σ = 36571200. Its totient is φ = 8661168.

The previous prime is 20771281. The next prime is 20771287. The reversal of 20771282 is 28217702.

20771282 is nontrivially palindromic in base 6.

It is not an unprimeable number, because it can be changed into a prime (20771281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19532 + ... + 20567.

It is an arithmetic number, because the mean of its divisors is an integer number (2285700).

Almost surely, 2^20771282 is an apocalyptic number.

20771282 is a deficient number, since it is larger than the sum of its proper divisors (15799918).

20771282 is a wasteful number, since it uses less digits than its factorization.

20771282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40145.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 20771282 is about 4557.5521938865. The cubic root of 20771282 is about 274.8871470828.

Adding to 20771282 its reverse (28217702), we get a palindrome (48988984).

The spelling of 20771282 in words is "twenty million, seven hundred seventy-one thousand, two hundred eighty-two".