8219418 has 16 divisors (see below), whose sum is σ = 17153856. Its totient is φ = 2620640.

The previous prime is 8219411. The next prime is 8219423. The reversal of 8219418 is 8149128.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8219411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29643 + ... + 29918.

It is an arithmetic number, because the mean of its divisors is an integer number (1072116).

Almost surely, 2^8219418 is an apocalyptic number.

8219418 is an abundant number, since it is smaller than the sum of its proper divisors (8934438).

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

8219418 is a wasteful number, since it uses less digits than its factorization.

8219418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59589.

The product of its digits is 4608, while the sum is 33.

The square root of 8219418 is about 2866.9527376642. The cubic root of 8219418 is about 201.8120167303.

The spelling of 8219418 in words is "eight million, two hundred nineteen thousand, four hundred eighteen".