434506109 has 4 divisors (see below), whose sum is σ = 434871516. Its totient is φ = 434140704.

The previous prime is 434506103. The next prime is 434506129. The reversal of 434506109 is 901605434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901605434 = 2 ⋅450802717.

It can be written as a sum of positive squares in 2 ways, for example, as 91145209 + 343360900 = 9547^2 + 18530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434506109 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 (434506103) 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, 180914 + ... + 183299.

It is an arithmetic number, because the mean of its divisors is an integer number (108717879).

Almost surely, 2^434506109 is an apocalyptic number.

It is an amenable number.

434506109 is a deficient number, since it is larger than the sum of its proper divisors (365407).

434506109 is a wasteful number, since it uses less digits than its factorization.

434506109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365406.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 434506109 is about 20844.8101214667. The cubic root of 434506109 is about 757.4116175969.

The spelling of 434506109 in words is "four hundred thirty-four million, five hundred six thousand, one hundred nine".