8543442 has 16 divisors (see below), whose sum is σ = 17830080. Its totient is φ = 2723952.

The previous prime is 8543413. The next prime is 8543443. The reversal of 8543442 is 2443458.

It is a d-powerful number, because it can be written as 8³ + 5⁷ + 4 + 3⁸ + 4⁶ + 4⁸ + 2²³ .

It is not an unprimeable number, because it can be changed into a prime (8543443) 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, 30817 + ... + 31092.

It is an arithmetic number, because the mean of its divisors is an integer number (1114380).

Almost surely, 2^8543442 is an apocalyptic number.

8543442 is an abundant number, since it is smaller than the sum of its proper divisors (9286638).

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

8543442 is a wasteful number, since it uses less digits than its factorization.

8543442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61937.

The product of its digits is 15360, while the sum is 30.

The square root of 8543442 is about 2922.9166939891. The cubic root of 8543442 is about 204.4298414489.

The spelling of 8543442 in words is "eight million, five hundred forty-three thousand, four hundred forty-two".