424320505 has 16 divisors (see below), whose sum is σ = 582269184. Its totient is φ = 290790720.

The previous prime is 424320503. The next prime is 424320509. The reversal of 424320505 is 505023424.

It is not a de Polignac number, because 424320505 - 2¹ = 424320503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424320505.

It is not an unprimeable number, because it can be changed into a prime (424320503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93724 + ... + 98146.

It is an arithmetic number, because the mean of its divisors is an integer number (36391824).

Almost surely, 2^424320505 is an apocalyptic number.

It is an amenable number.

424320505 is a deficient number, since it is larger than the sum of its proper divisors (157948679).

424320505 is a wasteful number, since it uses less digits than its factorization.

424320505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 424320505 is about 20599.0413611896. The cubic root of 424320505 is about 751.4463969362.

Adding to 424320505 its reverse (505023424), we get a palindrome (929343929).

The spelling of 424320505 in words is "four hundred twenty-four million, three hundred twenty thousand, five hundred five".