435220013 has 4 divisors (see below), whose sum is σ = 435266748. Its totient is φ = 435173280.

The previous prime is 435219977. The next prime is 435220021. The reversal of 435220013 is 310022534.

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 268861609 + 166358404 = 16397^2 + 12898^2 .

It is a cyclic number.

It is not a de Polignac number, because 435220013 - 2⁶ = 435219949 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 (435220613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106 + ... + 29787.

It is an arithmetic number, because the mean of its divisors is an integer number (108816687).

Almost surely, 2^435220013 is an apocalyptic number.

It is an amenable number.

435220013 is a deficient number, since it is larger than the sum of its proper divisors (46735).

435220013 is a wasteful number, since it uses less digits than its factorization.

435220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46734.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 435220013 is about 20861.9273558317. The cubic root of 435220013 is about 757.8262057957.

Adding to 435220013 its reverse (310022534), we get a palindrome (745242547).

The spelling of 435220013 in words is "four hundred thirty-five million, two hundred twenty thousand, thirteen".