434240323521 has 8 divisors (see below), whose sum is σ = 580195841280. Its totient is φ = 288889177392.

The previous prime is 434240323499. The next prime is 434240323537. The reversal of 434240323521 is 125323042434.

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

It is not a de Polignac number, because 434240323521 - 2¹⁸ = 434240061377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (434240323571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151091230 + ... + 151094103.

It is an arithmetic number, because the mean of its divisors is an integer number (72524480160).

Almost surely, 2^434240323521 is an apocalyptic number.

It is an amenable number.

434240323521 is a deficient number, since it is larger than the sum of its proper divisors (145955517759).

434240323521 is a wasteful number, since it uses less digits than its factorization.

434240323521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302185815.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 434240323521 its reverse (125323042434), we get a palindrome (559563365955).

The spelling of 434240323521 in words is "four hundred thirty-four billion, two hundred forty million, three hundred twenty-three thousand, five hundred twenty-one".