424021013 has 8 divisors (see below), whose sum is σ = 456894648. Its totient is φ = 391184064.

The previous prime is 424021001. The next prime is 424021033. The reversal of 424021013 is 310120424.

It can be written as a sum of positive squares in 4 ways, for example, as 55457809 + 368563204 = 7447^2 + 19198^2 .

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 424021013 - 2⁸ = 424020757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424020982 and 424021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424021033) 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, 17795 + ... + 34127.

It is an arithmetic number, because the mean of its divisors is an integer number (57111831).

Almost surely, 2^424021013 is an apocalyptic number.

It is an amenable number.

424021013 is a deficient number, since it is larger than the sum of its proper divisors (32873635).

424021013 is a wasteful number, since it uses less digits than its factorization.

424021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18343.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 424021013 is about 20591.7705163980. The cubic root of 424021013 is about 751.2695611475.

Adding to 424021013 its reverse (310120424), we get a palindrome (734141437).

The spelling of 424021013 in words is "four hundred twenty-four million, twenty-one thousand, thirteen".