421143330 has 32 divisors (see below), whose sum is σ = 1014695424. Its totient is φ = 111865856.

The previous prime is 421143319. The next prime is 421143347. The reversal of 421143330 is 33341124.

421143330 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 421143297 and 421143306.

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 15 ways as a sum of consecutive naturals, for example, 19602 + ... + 35021.

It is an arithmetic number, because the mean of its divisors is an integer number (31709232).

Almost surely, 2^421143330 is an apocalyptic number.

421143330 is an abundant number, since it is smaller than the sum of its proper divisors (593552094).

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

421143330 is a wasteful number, since it uses less digits than its factorization.

421143330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54890.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 421143330 is about 20521.7769698435. The cubic root of 421143330 is about 749.5661668779.

Adding to 421143330 its reverse (33341124), we get a palindrome (454484454).

The spelling of 421143330 in words is "four hundred twenty-one million, one hundred forty-three thousand, three hundred thirty".