420220024 has 16 divisors (see below), whose sum is σ = 900471600. Its totient is φ = 180094272.

The previous prime is 420220001. The next prime is 420220043. The reversal of 420220024 is 420022024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3751909 + ... + 3752020.

It is an arithmetic number, because the mean of its divisors is an integer number (56279475).

Almost surely, 2^420220024 is an apocalyptic number.

It is an amenable number.

420220024 is an abundant number, since it is smaller than the sum of its proper divisors (480251576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420220024 is a wasteful number, since it uses less digits than its factorization.

420220024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7503942 (or 7503938 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 420220024 is about 20499.2688650108. The cubic root of 420220024 is about 749.0179882466.

Adding to 420220024 its reverse (420022024), we get a palindrome (840242048).

The spelling of 420220024 in words is "four hundred twenty million, two hundred twenty thousand, twenty-four".