20730282 has 16 divisors (see below), whose sum is σ = 41531232. Its totient is φ = 6898320.

The previous prime is 20730277. The next prime is 20730313. The reversal of 20730282 is 28203702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (2595702).

Almost surely, 2^20730282 is an apocalyptic number.

20730282 is an abundant number, since it is smaller than the sum of its proper divisors (20800950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20730282 is a wasteful number, since it uses less digits than its factorization.

20730282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20730282 is about 4553.0519434770. The cubic root of 20730282 is about 274.7061632831.

Adding to 20730282 its reverse (28203702), we get a palindrome (48933984).

It can be divided in two parts, 20730 and 282, that added together give a palindrome (21012).

The spelling of 20730282 in words is "twenty million, seven hundred thirty thousand, two hundred eighty-two".