421143674 has 8 divisors (see below), whose sum is σ = 721960608. Its totient is φ = 180490140.

The previous prime is 421143673. The next prime is 421143689. The reversal of 421143674 is 476341124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 421143674.

It is not an unprimeable number, because it can be changed into a prime (421143673) 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 3 ways as a sum of consecutive naturals, for example, 15040832 + ... + 15040859.

It is an arithmetic number, because the mean of its divisors is an integer number (90245076).

Almost surely, 2^421143674 is an apocalyptic number.

421143674 is a deficient number, since it is larger than the sum of its proper divisors (300816934).

421143674 is a wasteful number, since it uses less digits than its factorization.

421143674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30081700.

The product of its digits is 16128, while the sum is 32.

The square root of 421143674 is about 20521.7853511823. The cubic root of 421143674 is about 749.5663709658.

Adding to 421143674 its reverse (476341124), we get a palindrome (897484798).

The spelling of 421143674 in words is "four hundred twenty-one million, one hundred forty-three thousand, six hundred seventy-four".