1230458 has 4 divisors (see below), whose sum is σ = 1845690. Its totient is φ = 615228.

The previous prime is 1230433. The next prime is 1230461. The reversal of 1230458 is 8540321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8540321 = 1229 ⋅6949.

It can be written as a sum of positive squares in only one way, i.e., 1129969 + 100489 = 1063^2 + 317^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307613 + ... + 307616.

2^1230458 is an apocalyptic number.

1230458 is a deficient number, since it is larger than the sum of its proper divisors (615232).

1230458 is an equidigital number, since it uses as much as digits as its factorization.

1230458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615231.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1230458 is about 1109.2601137695. The cubic root of 1230458 is about 107.1574239665.

Adding to 1230458 its reverse (8540321), we get a palindrome (9770779).

The spelling of 1230458 in words is "one million, two hundred thirty thousand, four hundred fifty-eight".