42432065 has 32 divisors (see below), whose sum is σ = 56881440. Its totient is φ = 30191616.

The previous prime is 42432059. The next prime is 42432067. The reversal of 42432065 is 56023424.

It can be written as a sum of positive squares in 16 ways, for example, as 20539024 + 21893041 = 4532^2 + 4679^2 .

It is not a de Polignac number, because 42432065 - 2⁶ = 42432001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42432067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375449 + ... + 375561.

It is an arithmetic number, because the mean of its divisors is an integer number (1777545).

Almost surely, 2^42432065 is an apocalyptic number.

It is an amenable number.

42432065 is a deficient number, since it is larger than the sum of its proper divisors (14449375).

42432065 is a wasteful number, since it uses less digits than its factorization.

42432065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42432065 is about 6513.9899447267. The cubic root of 42432065 is about 348.7905602376.

Adding to 42432065 its reverse (56023424), we get a palindrome (98455489).

The spelling of 42432065 in words is "forty-two million, four hundred thirty-two thousand, sixty-five".