42421351 has 8 divisors (see below), whose sum is σ = 49792160. Its totient is φ = 35378208.

The previous prime is 42421321. The next prime is 42421363. The reversal of 42421351 is 15312424.

42421351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42421351 - 2¹³ = 42413159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421321) 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 7 ways as a sum of consecutive naturals, for example, 81636 + ... + 82153.

It is an arithmetic number, because the mean of its divisors is an integer number (6224020).

Almost surely, 2^42421351 is an apocalyptic number.

42421351 is a deficient number, since it is larger than the sum of its proper divisors (7370809).

42421351 is a wasteful number, since it uses less digits than its factorization.

42421351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163833.

The product of its digits is 960, while the sum is 22.

The square root of 42421351 is about 6513.1675089775. The cubic root of 42421351 is about 348.7612014919.

Adding to 42421351 its reverse (15312424), we get a palindrome (57733775).

The spelling of 42421351 in words is "forty-two million, four hundred twenty-one thousand, three hundred fifty-one".