434581 has 10 divisors (see below), whose sum is σ = 509782. Its totient is φ = 370440.

The previous prime is 434573. The next prime is 434593. The reversal of 434581 is 185434.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 194481 = 490^2 + 441^2 .

It is not a de Polignac number, because 434581 - 2³ = 434573 is a prime.

It is a super-2 number, since 2×434581² = 377721291122, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434501) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2311 + ... + 2491.

2⁴³⁴⁵⁸¹ is an apocalyptic number.

It is an amenable number.

434581 is a deficient number, since it is larger than the sum of its proper divisors (75201).

434581 is an frugal number, since it uses more digits than its factorization.

434581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 188 counting only the distinct ones).

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

The square root of 434581 is about 659.2275783066. The cubic root of 434581 is about 75.7455130644.

It can be divided in two parts, 43 and 4581, that added together give a square (4624 = 68²).

The spelling of 434581 in words is "four hundred thirty-four thousand, five hundred eighty-one".