420522224 has 10 divisors (see below), whose sum is σ = 814761840. Its totient is φ = 210261104.

The previous prime is 420522211. The next prime is 420522229. The reversal of 420522224 is 422225024.

It is a self number, because there is not a number n which added to its sum of digits gives 420522224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420522229) by changing a digit.

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 as a sum of consecutive naturals, namely, 13141304 + ... + 13141335.

It is an arithmetic number, because the mean of its divisors is an integer number (81476184).

Almost surely, 2^420522224 is an apocalyptic number.

It is an amenable number.

420522224 is a deficient number, since it is larger than the sum of its proper divisors (394239616).

420522224 is a wasteful number, since it uses less digits than its factorization.

420522224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26282647 (or 26282641 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 420522224 is about 20506.6385348745. The cubic root of 420522224 is about 749.1974965869.

Adding to 420522224 its reverse (422225024), we get a palindrome (842747248).

The spelling of 420522224 in words is "four hundred twenty million, five hundred twenty-two thousand, two hundred twenty-four".