434321509 has 8 divisors (see below), whose sum is σ = 439607520. Its totient is φ = 429059376.

The previous prime is 434321507. The next prime is 434321533. The reversal of 434321509 is 905123434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 434321509 - 2¹ = 434321507 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 (434321507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32082 + ... + 43564.

It is an arithmetic number, because the mean of its divisors is an integer number (54950940).

Almost surely, 2^434321509 is an apocalyptic number.

It is an amenable number.

434321509 is a deficient number, since it is larger than the sum of its proper divisors (5286011).

434321509 is a wasteful number, since it uses less digits than its factorization.

434321509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 434321509 is about 20840.3816903626. The cubic root of 434321509 is about 757.3043402484.

It can be divided in two parts, 4343 and 21509, that added together give a palindrome (25852).

The spelling of 434321509 in words is "four hundred thirty-four million, three hundred twenty-one thousand, five hundred nine".