434340439 has 4 divisors (see below), whose sum is σ = 467751256. Its totient is φ = 400929624.

The previous prime is 434340433. The next prime is 434340461. The reversal of 434340439 is 934043434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934043434 = 2 ⋅467021717.

It is a cyclic number.

It is not a de Polignac number, because 434340439 - 2⁷ = 434340311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434340433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16705389 + ... + 16705414.

It is an arithmetic number, because the mean of its divisors is an integer number (116937814).

Almost surely, 2^434340439 is an apocalyptic number.

434340439 is a deficient number, since it is larger than the sum of its proper divisors (33410817).

434340439 is a wasteful number, since it uses less digits than its factorization.

434340439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33410816.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 434340439 is about 20840.8358517599. The cubic root of 434340439 is about 757.3153425148.

The spelling of 434340439 in words is "four hundred thirty-four million, three hundred forty thousand, four hundred thirty-nine".