420443013 has 16 divisors (see below), whose sum is σ = 590653440. Its totient is φ = 265501104.

The previous prime is 420443003. The next prime is 420443029. The reversal of 420443013 is 310344024.

It is not a de Polignac number, because 420443013 - 2⁹ = 420442501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420443003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22473 + ... + 36686.

It is an arithmetic number, because the mean of its divisors is an integer number (36915840).

Almost surely, 2^420443013 is an apocalyptic number.

It is an amenable number.

420443013 is a deficient number, since it is larger than the sum of its proper divisors (170210427).

420443013 is a wasteful number, since it uses less digits than its factorization.

420443013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59288.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420443013 is about 20504.7070937383. The cubic root of 420443013 is about 749.1504531680.

Adding to 420443013 its reverse (310344024), we get a palindrome (730787037).

The spelling of 420443013 in words is "four hundred twenty million, four hundred forty-three thousand, thirteen".