424538865 has 12 divisors (see below), whose sum is σ = 735867444. Its totient is φ = 226420704.

The previous prime is 424538857. The next prime is 424538903. The reversal of 424538865 is 568835424.

It can be written as a sum of positive squares in 2 ways, for example, as 260596449 + 163942416 = 16143^2 + 12804^2 .

It is not a de Polignac number, because 424538865 - 2³ = 424538857 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 9434197 = 424538865 / (4 + 2 + 4 + 5 + 3 + 8 + 8 + 6 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 424538865.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4717054 + ... + 4717143.

It is an arithmetic number, because the mean of its divisors is an integer number (61322287).

Almost surely, 2^424538865 is an apocalyptic number.

424538865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

424538865 is a deficient number, since it is larger than the sum of its proper divisors (311328579).

424538865 is a wasteful number, since it uses less digits than its factorization.

424538865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9434208 (or 9434205 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 424538865 is about 20604.3409261253. The cubic root of 424538865 is about 751.5752756922.

The spelling of 424538865 in words is "four hundred twenty-four million, five hundred thirty-eight thousand, eight hundred sixty-five".