434185 has 4 divisors (see below), whose sum is σ = 521028. Its totient is φ = 347344.

The previous prime is 434179. The next prime is 434191. The reversal of 434185 is 581434.

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

It is an interprime number because it is at equal distance from previous prime (434179) and next prime (434191).

It can be written as a sum of positive squares in 2 ways, for example, as 251001 + 183184 = 501^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 434185 - 2⁹ = 433673 is a prime.

It is a super-2 number, since 2×434185² = 377033228450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43414 + ... + 43423.

It is an arithmetic number, because the mean of its divisors is an integer number (130257).

2⁴³⁴¹⁸⁵ is an apocalyptic number.

It is an amenable number.

434185 is a deficient number, since it is larger than the sum of its proper divisors (86843).

434185 is an equidigital number, since it uses as much as digits as its factorization.

434185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86842.

The product of its digits is 1920, while the sum is 25.

The square root of 434185 is about 658.9271583415. The cubic root of 434185 is about 75.7224990666.

The spelling of 434185 in words is "four hundred thirty-four thousand, one hundred eighty-five".