421214013 has 32 divisors (see below), whose sum is σ = 689193600. Its totient is φ = 255266640.

The previous prime is 421214011. The next prime is 421214023. The reversal of 421214013 is 310412124.

It is not a de Polignac number, because 421214013 - 2¹ = 421214011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421214011) 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 31 ways as a sum of consecutive naturals, for example, 15303 + ... + 32811.

It is an arithmetic number, because the mean of its divisors is an integer number (21537300).

Almost surely, 2^421214013 is an apocalyptic number.

It is an amenable number.

421214013 is a deficient number, since it is larger than the sum of its proper divisors (267979587).

421214013 is an equidigital number, since it uses as much as digits as its factorization.

421214013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17541 (or 17523 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 421214013 is about 20523.4990437791. The cubic root of 421214013 is about 749.6080992541.

Adding to 421214013 its reverse (310412124), we get a palindrome (731626137).

It can be divided in two parts, 4212 and 14013, that added together give a square (18225 = 135²).

The spelling of 421214013 in words is "four hundred twenty-one million, two hundred fourteen thousand, thirteen".