421242107 has 8 divisors (see below), whose sum is σ = 494886000. Its totient is φ = 353489760.

The previous prime is 421242091. The next prime is 421242131. The reversal of 421242107 is 701242124.

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

It is not a de Polignac number, because 421242107 - 2⁴ = 421242091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421242137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472732 + ... + 1473017.

It is an arithmetic number, because the mean of its divisors is an integer number (61860750).

Almost surely, 2^421242107 is an apocalyptic number.

421242107 is a deficient number, since it is larger than the sum of its proper divisors (73643893).

421242107 is a wasteful number, since it uses less digits than its factorization.

421242107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945773.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 421242107 is about 20524.1834673148. The cubic root of 421242107 is about 749.6247645921.

The spelling of 421242107 in words is "four hundred twenty-one million, two hundred forty-two thousand, one hundred seven".