20210260 has 48 divisors (see below), whose sum is σ = 48787200. Its totient is φ = 6888960.

The previous prime is 20210257. The next prime is 20210291. The reversal of 20210260 is 6201202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20210260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33441 + ... + 34039.

It is an arithmetic number, because the mean of its divisors is an integer number (1016400).

Almost surely, 2^20210260 is an apocalyptic number.

20210260 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 20210260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24393600).

20210260 is an abundant number, since it is smaller than the sum of its proper divisors (28576940).

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

20210260 is a wasteful number, since it uses less digits than its factorization.

20210260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20210260 is about 4495.5822759683. The cubic root of 20210260 is about 272.3896700060.

Adding to 20210260 its reverse (6201202), we get a palindrome (26411462).

The spelling of 20210260 in words is "twenty million, two hundred ten thousand, two hundred sixty".