421142344 has 32 divisors (see below), whose sum is σ = 923440320. Its totient is φ = 176291136.

The previous prime is 421142333. The next prime is 421142357. The reversal of 421142344 is 443241124.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 85039 + ... + 89854.

It is an arithmetic number, because the mean of its divisors is an integer number (28857510).

Almost surely, 2^421142344 is an apocalyptic number.

It is an amenable number.

421142344 is an abundant number, since it is smaller than the sum of its proper divisors (502297976).

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

421142344 is a wasteful number, since it uses less digits than its factorization.

421142344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174949 (or 174945 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 421142344 is about 20521.7529465687. The cubic root of 421142344 is about 749.5655819046.

Adding to 421142344 its reverse (443241124), we get a palindrome (864383468).

The spelling of 421142344 in words is "four hundred twenty-one million, one hundred forty-two thousand, three hundred forty-four".