42436465 has 4 divisors (see below), whose sum is σ = 50923764. Its totient is φ = 33949168.

The previous prime is 42436453. The next prime is 42436469. The reversal of 42436465 is 56463424.

42436465 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.

It can be written as a sum of positive squares in 2 ways, for example, as 17715681 + 24720784 = 4209^2 + 4972^2 .

It is a cyclic number.

It is not a de Polignac number, because 42436465 - 2¹⁹ = 41912177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42436465.

It is not an unprimeable number, because it can be changed into a prime (42436469) 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, 4243642 + ... + 4243651.

It is an arithmetic number, because the mean of its divisors is an integer number (12730941).

Almost surely, 2^42436465 is an apocalyptic number.

It is an amenable number.

42436465 is a deficient number, since it is larger than the sum of its proper divisors (8487299).

42436465 is an equidigital number, since it uses as much as digits as its factorization.

42436465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487298.

The product of its digits is 69120, while the sum is 34.

The square root of 42436465 is about 6514.3276706042. The cubic root of 42436465 is about 348.8026157859.

Adding to 42436465 its reverse (56463424), we get a palindrome (98899889).

The spelling of 42436465 in words is "forty-two million, four hundred thirty-six thousand, four hundred sixty-five".