42064045 has 4 divisors (see below), whose sum is σ = 50476860. Its totient is φ = 33651232.

The previous prime is 42064039. The next prime is 42064063. The reversal of 42064045 is 54046024.

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 33028009 + 9036036 = 5747^2 + 3006^2 .

It is a cyclic number.

It is not a de Polignac number, because 42064045 - 2³ = 42064037 is a prime.

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, 4206400 + ... + 4206409.

It is an arithmetic number, because the mean of its divisors is an integer number (12619215).

Almost surely, 2^42064045 is an apocalyptic number.

It is an amenable number.

42064045 is a deficient number, since it is larger than the sum of its proper divisors (8412815).

42064045 is an equidigital number, since it uses as much as digits as its factorization.

42064045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8412814.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 42064045 is about 6485.6799951894. The cubic root of 42064045 is about 347.7792589845.

The spelling of 42064045 in words is "forty-two million, sixty-four thousand, forty-five".