434858 has 4 divisors (see below), whose sum is σ = 652290. Its totient is φ = 217428.

The previous prime is 434857. The next prime is 434867. The reversal of 434858 is 858434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 858434 = 2 ⋅429217.

It can be written as a sum of positive squares in only one way, i.e., 310249 + 124609 = 557^2 + 353^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (434857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108713 + ... + 108716.

2⁴³⁴⁸⁵⁸ is an apocalyptic number.

434858 is a deficient number, since it is larger than the sum of its proper divisors (217432).

434858 is a wasteful number, since it uses less digits than its factorization.

434858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217431.

The product of its digits is 15360, while the sum is 32.

The square root of 434858 is about 659.4376392048. The cubic root of 434858 is about 75.7616029310.

The spelling of 434858 in words is "four hundred thirty-four thousand, eight hundred fifty-eight".