20351082 has 16 divisors (see below), whose sum is σ = 40747392. Its totient is φ = 6776160.

The previous prime is 20351081. The next prime is 20351087. The reversal of 20351082 is 28015302.

It is not an unprimeable number, because it can be changed into a prime (20351081) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7782 + ... + 10062.

It is an arithmetic number, because the mean of its divisors is an integer number (2546712).

Almost surely, 2^20351082 is an apocalyptic number.

20351082 is an abundant number, since it is smaller than the sum of its proper divisors (20396310).

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

20351082 is a wasteful number, since it uses less digits than its factorization.

20351082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20351082 is about 4511.2173523341. The cubic root of 20351082 is about 273.0208627671.

Adding to 20351082 its reverse (28015302), we get a palindrome (48366384).

The spelling of 20351082 in words is "twenty million, three hundred fifty-one thousand, eighty-two".