421024244 has 24 divisors (see below), whose sum is σ = 799166088. Its totient is φ = 193295360.

The previous prime is 421024229. The next prime is 421024297. The reversal of 421024244 is 442420124.

It can be written as a sum of positive squares in 4 ways, for example, as 3312400 + 417711844 = 1820^2 + 20438^2 .

It is a super-2 number, since 2×421024244² = 354522828071543072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 72719 + ... + 78294.

It is an arithmetic number, because the mean of its divisors is an integer number (33298587).

Almost surely, 2^421024244 is an apocalyptic number.

It is an amenable number.

421024244 is a deficient number, since it is larger than the sum of its proper divisors (378141844).

421024244 is a wasteful number, since it uses less digits than its factorization.

421024244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151075 (or 151073 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 421024244 is about 20518.8753103088. The cubic root of 421024244 is about 749.4955090242.

Adding to 421024244 its reverse (442420124), we get a palindrome (863444368).

The spelling of 421024244 in words is "four hundred twenty-one million, twenty-four thousand, two hundred forty-four".