421411442 has 4 divisors (see below), whose sum is σ = 632117166. Its totient is φ = 210705720.

The previous prime is 421411439. The next prime is 421411477. The reversal of 421411442 is 244114124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 418652521 + 2758921 = 20461^2 + 1661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105352859 + ... + 105352862.

Almost surely, 2^421411442 is an apocalyptic number.

421411442 is a deficient number, since it is larger than the sum of its proper divisors (210705724).

421411442 is a wasteful number, since it uses less digits than its factorization.

421411442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210705723.

The product of its digits is 1024, while the sum is 23.

The square root of 421411442 is about 20528.3083082849. The cubic root of 421411442 is about 749.7251982873.

Adding to 421411442 its reverse (244114124), we get a palindrome (665525566).

The spelling of 421411442 in words is "four hundred twenty-one million, four hundred eleven thousand, four hundred forty-two".