8540430 has 16 divisors (see below), whose sum is σ = 20497104. Its totient is φ = 2277440.

The previous prime is 8540401. The next prime is 8540431. The reversal of 8540430 is 340458.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8540430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540431) 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, 142311 + ... + 142370.

It is an arithmetic number, because the mean of its divisors is an integer number (1281069).

Almost surely, 2^8540430 is an apocalyptic number.

8540430 is an abundant number, since it is smaller than the sum of its proper divisors (11956674).

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

8540430 is a wasteful number, since it uses less digits than its factorization.

8540430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284691.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 8540430 is about 2922.4014097998. The cubic root of 8540430 is about 204.4058146356.

Adding to 8540430 its reverse (340458), we get a palindrome (8880888).

The spelling of 8540430 in words is "eight million, five hundred forty thousand, four hundred thirty".