434091 has 12 divisors (see below), whose sum is σ = 673512. Its totient is φ = 247968.

The previous prime is 434087. The next prime is 434107. The reversal of 434091 is 190434.

It is not a de Polignac number, because 434091 - 2² = 434087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434011) 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 11 ways as a sum of consecutive naturals, for example, 1330 + ... + 1623.

It is an arithmetic number, because the mean of its divisors is an integer number (56126).

2⁴³⁴⁰⁹¹ is an apocalyptic number.

434091 is a deficient number, since it is larger than the sum of its proper divisors (239421).

434091 is a wasteful number, since it uses less digits than its factorization.

434091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2963 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 434091 is about 658.8558264142. The cubic root of 434091 is about 75.7170340931.

The spelling of 434091 in words is "four hundred thirty-four thousand, ninety-one".