434140 has 36 divisors (see below), whose sum is σ = 1062936. Its totient is φ = 148512.

The previous prime is 434117. The next prime is 434141. The reversal of 434140 is 41434.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434141) 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, 759 + ... + 1201.

It is an arithmetic number, because the mean of its divisors is an integer number (29526).

2⁴³⁴¹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531468).

434140 is an abundant number, since it is smaller than the sum of its proper divisors (628796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

434140 is a wasteful number, since it uses less digits than its factorization.

434140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 434140 is about 658.8930110420. The cubic root of 434140 is about 75.7198829543.

Adding to 434140 its reverse (41434), we get a palindrome (475574).

The spelling of 434140 in words is "four hundred thirty-four thousand, one hundred forty".