20341020 has 96 divisors (see below), whose sum is σ = 68544000. Its totient is φ = 4402944.

The previous prime is 20341019. The next prime is 20341037. The reversal of 20341020 is 2014302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20340987 and 20341005.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 6706 + ... + 9254.

It is an arithmetic number, because the mean of its divisors is an integer number (714000).

Almost surely, 2^20341020 is an apocalyptic number.

20341020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20341020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34272000).

20341020 is an abundant number, since it is smaller than the sum of its proper divisors (48202980).

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

20341020 is a wasteful number, since it uses less digits than its factorization.

20341020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587 (or 2585 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20341020 is about 4510.1019944121. The cubic root of 20341020 is about 272.9758596105.

Adding to 20341020 its reverse (2014302), we get a palindrome (22355322).

The spelling of 20341020 in words is "twenty million, three hundred forty-one thousand, twenty".