420244013 has 8 divisors (see below), whose sum is σ = 480796800. Its totient is φ = 359820720.

The previous prime is 420244007. The next prime is 420244043. The reversal of 420244013 is 310442024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420244013 - 2⁴ = 420243997 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 (420244043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25313 + ... + 38486.

It is an arithmetic number, because the mean of its divisors is an integer number (60099600).

Almost surely, 2^420244013 is an apocalyptic number.

It is an amenable number.

420244013 is a deficient number, since it is larger than the sum of its proper divisors (60552787).

420244013 is an equidigital number, since it uses as much as digits as its factorization.

420244013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64747.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420244013 is about 20499.8539750897. The cubic root of 420244013 is about 749.0322409789.

Adding to 420244013 its reverse (310442024), we get a palindrome (730686037).

The spelling of 420244013 in words is "four hundred twenty million, two hundred forty-four thousand, thirteen".