42431601 has 4 divisors (see below), whose sum is σ = 56575472. Its totient is φ = 28287732.

The previous prime is 42431567. The next prime is 42431651. The reversal of 42431601 is 10613424.

42431601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42431601 - 2¹¹ = 42429553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42431651) 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, 7071931 + ... + 7071936.

It is an arithmetic number, because the mean of its divisors is an integer number (14143868).

Almost surely, 2^42431601 is an apocalyptic number.

It is an amenable number.

42431601 is a deficient number, since it is larger than the sum of its proper divisors (14143871).

42431601 is a wasteful number, since it uses less digits than its factorization.

42431601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14143870.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42431601 is about 6513.9543289771. The cubic root of 42431601 is about 348.7892888767.

The spelling of 42431601 in words is "forty-two million, four hundred thirty-one thousand, six hundred one".