424403561 has 8 divisors (see below), whose sum is σ = 434403840. Its totient is φ = 414443808.

The previous prime is 424403543. The next prime is 424403597. The reversal of 424403561 is 165304424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424403561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (424403261) 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, 11600 + ... + 31358.

It is an arithmetic number, because the mean of its divisors is an integer number (54300480).

Almost surely, 2^424403561 is an apocalyptic number.

It is an amenable number.

424403561 is a deficient number, since it is larger than the sum of its proper divisors (10000279).

424403561 is a wasteful number, since it uses less digits than its factorization.

424403561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20263.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 424403561 is about 20601.0572786932. The cubic root of 424403561 is about 751.4954228176.

Adding to 424403561 its reverse (165304424), we get a palindrome (589707985).

The spelling of 424403561 in words is "four hundred twenty-four million, four hundred three thousand, five hundred sixty-one".