8540424 has 64 divisors (see below), whose sum is σ = 24984000. Its totient is φ = 2695680.

The previous prime is 8540401. The next prime is 8540431. The reversal of 8540424 is 4240458.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3064 + ... + 5144.

It is an arithmetic number, because the mean of its divisors is an integer number (390375).

Almost surely, 2^8540424 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 8540424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12492000).

8540424 is an abundant number, since it is smaller than the sum of its proper divisors (16443576).

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

8540424 is a wasteful number, since it uses less digits than its factorization.

8540424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 8540424 is about 2922.4003832466. The cubic root of 8540424 is about 204.4057667678.

The spelling of 8540424 in words is "eight million, five hundred forty thousand, four hundred twenty-four".