424744321 has 8 divisors (see below), whose sum is σ = 428172264. Its totient is φ = 421330560.

The previous prime is 424744301. The next prime is 424744351. The reversal of 424744321 is 123447424.

It can be written as a sum of positive squares in 4 ways, for example, as 2852721 + 421891600 = 1689^2 + 20540^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 424744321 - 2¹¹ = 424742273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424744301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61251 + ... + 67831.

It is an arithmetic number, because the mean of its divisors is an integer number (53521533).

Almost surely, 2^424744321 is an apocalyptic number.

It is an amenable number.

424744321 is a deficient number, since it is larger than the sum of its proper divisors (3427943).

424744321 is a wasteful number, since it uses less digits than its factorization.

424744321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091.

The product of its digits is 21504, while the sum is 31.

The square root of 424744321 is about 20609.3260685545. The cubic root of 424744321 is about 751.6964980030.

The spelling of 424744321 in words is "four hundred twenty-four million, seven hundred forty-four thousand, three hundred twenty-one".