20410220 has 24 divisors (see below), whose sum is σ = 43775424. Its totient is φ = 7990016.

The previous prime is 20410213. The next prime is 20410259. The reversal of 20410220 is 2201402.

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, 9917 + ... + 11796.

It is an arithmetic number, because the mean of its divisors is an integer number (1823976).

Almost surely, 2^20410220 is an apocalyptic number.

20410220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20410220 is an abundant number, since it is smaller than the sum of its proper divisors (23365204).

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

20410220 is a wasteful number, since it uses less digits than its factorization.

20410220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21769 (or 21767 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20410220 is about 4517.7671476073. The cubic root of 20410220 is about 273.2850631927.

Adding to 20410220 its reverse (2201402), we get a palindrome (22611622).

The spelling of 20410220 in words is "twenty million, four hundred ten thousand, two hundred twenty".