421104242 has 16 divisors (see below), whose sum is σ = 680628312. Its totient is φ = 194246400.

The previous prime is 421104227. The next prime is 421104311. The reversal of 421104242 is 242401124.

It can be written as a sum of positive squares in 4 ways, for example, as 377952481 + 43151761 = 19441^2 + 6569^2 .

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, 59492 + ... + 66192.

Almost surely, 2^421104242 is an apocalyptic number.

421104242 is a deficient number, since it is larger than the sum of its proper divisors (259524070).

421104242 is a wasteful number, since it uses less digits than its factorization.

421104242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 421104242 is about 20520.8245935684. The cubic root of 421104242 is about 749.5429760806.

Adding to 421104242 its reverse (242401124), we get a palindrome (663505366).

The spelling of 421104242 in words is "four hundred twenty-one million, one hundred four thousand, two hundred forty-two".