420232421253224 has 16 divisors (see below), whose sum is σ = 787936012164420. Its totient is φ = 210116151342720.

The previous prime is 420232421253199. The next prime is 420232421253301. The reversal of 420232421253224 is 422352124232024.

It can be written as a sum of positive squares in 2 ways, for example, as 334908959068324 + 85323462184900 = 18300518^2 + 9237070^2 .

It is a super-2 number, since 2×420232421253224² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42448244 + ... + 51403484.

Almost surely, 2^{420232421253224} is an apocalyptic number.

It is an amenable number.

420232421253224 is a deficient number, since it is larger than the sum of its proper divisors (367703590911196).

420232421253224 is a wasteful number, since it uses less digits than its factorization.

420232421253224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14820980 (or 14820976 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 420232421253224 its reverse (422352124232024), we get a palindrome (842584545485248).

The spelling of 420232421253224 in words is "four hundred twenty trillion, two hundred thirty-two billion, four hundred twenty-one million, two hundred fifty-three thousand, two hundred twenty-four".