4258491 has 4 divisors (see below), whose sum is σ = 5677992. Its totient is φ = 2838992.

The previous prime is 4258477. The next prime is 4258531. The reversal of 4258491 is 1948524.

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

It is a cyclic number.

It is not a de Polignac number, because 4258491 - 2⁵ = 4258459 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4258411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709746 + ... + 709751.

It is an arithmetic number, because the mean of its divisors is an integer number (1419498).

Almost surely, 2^4258491 is an apocalyptic number.

4258491 is a deficient number, since it is larger than the sum of its proper divisors (1419501).

4258491 is a wasteful number, since it uses less digits than its factorization.

4258491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419500.

The product of its digits is 11520, while the sum is 33.

The square root of 4258491 is about 2063.6111552325. The cubic root of 4258491 is about 162.0883910253.

Adding to 4258491 its sum of digits (33), we get a palindrome (4258524).

The spelling of 4258491 in words is "four million, two hundred fifty-eight thousand, four hundred ninety-one".