8418520 has 96 divisors (see below), whose sum is σ = 22219920. Its totient is φ = 2845440.

The previous prime is 8418511. The next prime is 8418521. The reversal of 8418520 is 258148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8418521) 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, 158814 + ... + 158866.

Almost surely, 2^8418520 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 8418520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11109960).

8418520 is an abundant number, since it is smaller than the sum of its proper divisors (13801400).

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

8418520 is a wasteful number, since it uses less digits than its factorization.

8418520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 8418520 is about 2901.4685936608. The cubic root of 8418520 is about 203.4285558356.

The spelling of 8418520 in words is "eight million, four hundred eighteen thousand, five hundred twenty".