434013505 has 4 divisors (see below), whose sum is σ = 520816212. Its totient is φ = 347210800.

The previous prime is 434013467. The next prime is 434013509. The reversal of 434013505 is 505310434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162027441 + 271986064 = 12729^2 + 16492^2 .

It is a de Polignac number, because none of the positive numbers 2^k-434013505 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434013505.

It is not an unprimeable number, because it can be changed into a prime (434013509) 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, 43401346 + ... + 43401355.

It is an arithmetic number, because the mean of its divisors is an integer number (130204053).

Almost surely, 2^434013505 is an apocalyptic number.

It is an amenable number.

434013505 is a deficient number, since it is larger than the sum of its proper divisors (86802707).

434013505 is an equidigital number, since it uses as much as digits as its factorization.

434013505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86802706.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 434013505 is about 20832.9907838505. The cubic root of 434013505 is about 757.1252809411.

Adding to 434013505 its reverse (505310434), we get a palindrome (939323939).

The spelling of 434013505 in words is "four hundred thirty-four million, thirteen thousand, five hundred five".