421143032 has 48 divisors (see below), whose sum is σ = 821864880. Its totient is φ = 202272000.

The previous prime is 421143031. The next prime is 421143043. The reversal of 421143032 is 230341124.

It is a super-2 number, since 2×421143032² = 354722906804306048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421142995 and 421143013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421143031) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1050032 + ... + 1050432.

It is an arithmetic number, because the mean of its divisors is an integer number (17122185).

Almost surely, 2^421143032 is an apocalyptic number.

It is an amenable number.

421143032 is a deficient number, since it is larger than the sum of its proper divisors (400721848).

421143032 is a wasteful number, since it uses less digits than its factorization.

421143032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 421143032 is about 20521.7697092624. The cubic root of 421143032 is about 749.5659900808.

Adding to 421143032 its reverse (230341124), we get a palindrome (651484156).

The spelling of 421143032 in words is "four hundred twenty-one million, one hundred forty-three thousand, thirty-two".