8540458 has 4 divisors (see below), whose sum is σ = 12810690. Its totient is φ = 4270228.

The previous prime is 8540431. The next prime is 8540461.

8540458 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6985449 + 1555009 = 2643^2 + 1247^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135113 + ... + 2135116.

Almost surely, 2^8540458 is an apocalyptic number.

8540458 is a deficient number, since it is larger than the sum of its proper divisors (4270232).

8540458 is a wasteful number, since it uses less digits than its factorization.

8540458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270231.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 8540458 is about 2922.4062003767. The cubic root of 8540458 is about 204.4060380185.

It can be divided in two parts, 8540 and 458, that added together give a palindrome (8998).

The spelling of 8540458 in words is "eight million, five hundred forty thousand, four hundred fifty-eight".