420443124 has 12 divisors (see below), whose sum is σ = 981033984. Its totient is φ = 140147704.

The previous prime is 420443083. The next prime is 420443129. The reversal of 420443124 is 421344024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 420443094 and 420443103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420443129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17518452 + ... + 17518475.

It is an arithmetic number, because the mean of its divisors is an integer number (81752832).

Almost surely, 2^420443124 is an apocalyptic number.

It is an amenable number.

420443124 is an abundant number, since it is smaller than the sum of its proper divisors (560590860).

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

420443124 is a wasteful number, since it uses less digits than its factorization.

420443124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35036934 (or 35036932 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 420443124 is about 20504.7098004337. The cubic root of 420443124 is about 749.1505190951.

Adding to 420443124 its reverse (421344024), we get a palindrome (841787148).

The spelling of 420443124 in words is "four hundred twenty million, four hundred forty-three thousand, one hundred twenty-four".