424020013 has 4 divisors (see below), whose sum is σ = 424999708. Its totient is φ = 423040320.

The previous prime is 424020007. The next prime is 424020029. The reversal of 424020013 is 310020424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 228523689 + 195496324 = 15117^2 + 13982^2 .

It is a cyclic number.

It is not a de Polignac number, because 424020013 - 2⁹ = 424019501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424020313) 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 3 ways as a sum of consecutive naturals, for example, 489198 + ... + 490063.

It is an arithmetic number, because the mean of its divisors is an integer number (106249927).

Almost surely, 2^424020013 is an apocalyptic number.

It is an amenable number.

424020013 is a deficient number, since it is larger than the sum of its proper divisors (979695).

424020013 is an equidigital number, since it uses as much as digits as its factorization.

424020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979694.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 424020013 is about 20591.7462348389. The cubic root of 424020013 is about 751.2689705555.

Adding to 424020013 its reverse (310020424), we get a palindrome (734040437).

The spelling of 424020013 in words is "four hundred twenty-four million, twenty thousand, thirteen".