42597385 has 4 divisors (see below), whose sum is σ = 51116868. Its totient is φ = 34077904.

The previous prime is 42597341. The next prime is 42597407. The reversal of 42597385 is 58379524.

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 17707264 + 24890121 = 4208^2 + 4989^2 .

It is a cyclic number.

It is not a de Polignac number, because 42597385 - 2¹¹ = 42595337 is a prime.

It is a Duffinian 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, 4259734 + ... + 4259743.

It is an arithmetic number, because the mean of its divisors is an integer number (12779217).

Almost surely, 2^42597385 is an apocalyptic number.

It is an amenable number.

42597385 is a deficient number, since it is larger than the sum of its proper divisors (8519483).

42597385 is an equidigital number, since it uses as much as digits as its factorization.

42597385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8519482.

The product of its digits is 302400, while the sum is 43.

The square root of 42597385 is about 6526.6672199523. The cubic root of 42597385 is about 349.2429487099.

The spelling of 42597385 in words is "forty-two million, five hundred ninety-seven thousand, three hundred eighty-five".