8408220 has 48 divisors (see below), whose sum is σ = 24097920. Its totient is φ = 2189376.

The previous prime is 8408189. The next prime is 8408227. The reversal of 8408220 is 228048.

It is a super-3 number, since 3×8408220³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (502040).

Almost surely, 2^8408220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8408220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12048960).

8408220 is an abundant number, since it is smaller than the sum of its proper divisors (15689700).

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

8408220 is a wasteful number, since it uses less digits than its factorization.

8408220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314 (or 3312 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 8408220 is about 2899.6930872077. The cubic root of 8408220 is about 203.3455575081.

The spelling of 8408220 in words is "eight million, four hundred eight thousand, two hundred twenty".