20231082 has 36 divisors (see below), whose sum is σ = 45105606. Its totient is φ = 6553440.

The previous prime is 20231069. The next prime is 20231083. The reversal of 20231082 is 28013202.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 20169081 + 62001 = 4491^2 + 249^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20231083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24232 + ... + 25052.

Almost surely, 2^20231082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22552803).

20231082 is an abundant number, since it is smaller than the sum of its proper divisors (24874524).

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

20231082 is a wasteful number, since it uses less digits than its factorization.

20231082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20231082 is about 4497.8975088368. The cubic root of 20231082 is about 272.4831827570.

Adding to 20231082 its reverse (28013202), we get a palindrome (48244284).

The spelling of 20231082 in words is "twenty million, two hundred thirty-one thousand, eighty-two".