8109420 has 72 divisors (see below), whose sum is σ = 24980592. Its totient is φ = 1964160.

The previous prime is 8109419. The next prime is 8109421. The reversal of 8109420 is 249018.

It is an interprime number because it is at equal distance from previous prime (8109419) and next prime (8109421).

It is not an unprimeable number, because it can be changed into a prime (8109421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6702 + ... + 7818.

Almost surely, 2^8109420 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 8109420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12490296).

8109420 is an abundant number, since it is smaller than the sum of its proper divisors (16871172).

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

8109420 is a wasteful number, since it uses less digits than its factorization.

8109420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 8109420 is about 2847.7043385857. The cubic root of 8109420 is about 200.9077074370.

The spelling of 8109420 in words is "eight million, one hundred nine thousand, four hundred twenty".