424032013 has 4 divisors (see below), whose sum is σ = 424816348. Its totient is φ = 423247680.

The previous prime is 424031999. The next prime is 424032031. The reversal of 424032013 is 310230424.

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 281635524 + 142396489 = 16782^2 + 11933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424032013 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 (424032083) 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, 391356 + ... + 392437.

It is an arithmetic number, because the mean of its divisors is an integer number (106204087).

Almost surely, 2^424032013 is an apocalyptic number.

It is an amenable number.

424032013 is a deficient number, since it is larger than the sum of its proper divisors (784335).

424032013 is an equidigital number, since it uses as much as digits as its factorization.

424032013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784334.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 424032013 is about 20592.0376116595. The cubic root of 424032013 is about 751.2760575973.

Adding to 424032013 its reverse (310230424), we get a palindrome (734262437).

The spelling of 424032013 in words is "four hundred twenty-four million, thirty-two thousand, thirteen".