42024965 has 4 divisors (see below), whose sum is σ = 50429964. Its totient is φ = 33619968.

The previous prime is 42024953. The next prime is 42024991. The reversal of 42024965 is 56942024.

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 13786369 + 28238596 = 3713^2 + 5314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42024965 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4202492 + ... + 4202501.

It is an arithmetic number, because the mean of its divisors is an integer number (12607491).

Almost surely, 2^42024965 is an apocalyptic number.

It is an amenable number.

42024965 is a deficient number, since it is larger than the sum of its proper divisors (8404999).

42024965 is an equidigital number, since it uses as much as digits as its factorization.

42024965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404998.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 42024965 is about 6482.6665038393. Note that the first 3 decimals coincide. The cubic root of 42024965 is about 347.6715230735.

Adding to 42024965 its reverse (56942024), we get a palindrome (98966989).

The spelling of 42024965 in words is "forty-two million, twenty-four thousand, nine hundred sixty-five".