424084321 has 4 divisors (see below), whose sum is σ = 424134292. Its totient is φ = 424034352.

The previous prime is 424084307. The next prime is 424084333. The reversal of 424084321 is 123480424.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 274266721 + 149817600 = 16561^2 + 12240^2 .

It is a cyclic number.

It is not a de Polignac number, because 424084321 - 2⁹ = 424083809 is a prime.

It is a super-2 number, since 2×424084321² = 359695022636062082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424084321.

It is not an unprimeable number, because it can be changed into a prime (424084301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8730 + ... + 30403.

It is an arithmetic number, because the mean of its divisors is an integer number (106033573).

Almost surely, 2^424084321 is an apocalyptic number.

It is an amenable number.

424084321 is a deficient number, since it is larger than the sum of its proper divisors (49971).

424084321 is a wasteful number, since it uses less digits than its factorization.

424084321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49970.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 424084321 is about 20593.3076750676. The cubic root of 424084321 is about 751.3069484507.

The spelling of 424084321 in words is "four hundred twenty-four million, eighty-four thousand, three hundred twenty-one".