424242561 has 8 divisors (see below), whose sum is σ = 572817280. Its totient is φ = 279248112.

The previous prime is 424242551. The next prime is 424242563. The reversal of 424242561 is 165242424.

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

It is not a de Polignac number, because 424242561 - 2⁵ = 424242529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424242563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894790 + ... + 895263.

It is an arithmetic number, because the mean of its divisors is an integer number (71602160).

Almost surely, 2^424242561 is an apocalyptic number.

It is an amenable number.

424242561 is a deficient number, since it is larger than the sum of its proper divisors (148574719).

424242561 is a wasteful number, since it uses less digits than its factorization.

424242561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790135.

The product of its digits is 15360, while the sum is 30.

The square root of 424242561 is about 20597.1493415958. The cubic root of 424242561 is about 751.4003827213.

Adding to 424242561 its reverse (165242424), we get a palindrome (589484985).

The spelling of 424242561 in words is "four hundred twenty-four million, two hundred forty-two thousand, five hundred sixty-one".