420313424 has 20 divisors (see below), whose sum is σ = 827709300. Its totient is φ = 206711040.

The previous prime is 420313409. The next prime is 420313471. The reversal of 420313424 is 424313024.

It can be written as a sum of positive squares in 2 ways, for example, as 60528400 + 359785024 = 7780^2 + 18968^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 420313424.

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 3 ways as a sum of consecutive naturals, for example, 214349 + ... + 216300.

It is an arithmetic number, because the mean of its divisors is an integer number (41385465).

Almost surely, 2^420313424 is an apocalyptic number.

It is an amenable number.

420313424 is a deficient number, since it is larger than the sum of its proper divisors (407395876).

420313424 is a wasteful number, since it uses less digits than its factorization.

420313424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430718 (or 430712 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 420313424 is about 20501.5468684682. The cubic root of 420313424 is about 749.0734775091.

Adding to 420313424 its reverse (424313024), we get a palindrome (844626448).

The spelling of 420313424 in words is "four hundred twenty million, three hundred thirteen thousand, four hundred twenty-four".