42309601 has 4 divisors (see below), whose sum is σ = 42405552. Its totient is φ = 42213652.

The previous prime is 42309577. The next prime is 42309613. The reversal of 42309601 is 10690324.

42309601 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 a cyclic number.

It is not a de Polignac number, because 42309601 - 2⁵ = 42309569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42309671) 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, 47311 + ... + 48196.

It is an arithmetic number, because the mean of its divisors is an integer number (10601388).

Almost surely, 2^42309601 is an apocalyptic number.

It is an amenable number.

42309601 is a deficient number, since it is larger than the sum of its proper divisors (95951).

42309601 is an equidigital number, since it uses as much as digits as its factorization.

42309601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95950.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 42309601 is about 6504.5830765699. The cubic root of 42309601 is about 348.4546865218.

Adding to 42309601 its reverse (10690324), we get a palindrome (52999925).

It can be divided in two parts, 4230 and 9601, that added together give a palindrome (13831).

The spelling of 42309601 in words is "forty-two million, three hundred nine thousand, six hundred one".