42985357 has 4 divisors (see below), whose sum is σ = 43072000. Its totient is φ = 42898716.

The previous prime is 42985351. The next prime is 42985373. The reversal of 42985357 is 75358924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42985357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42985351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42573 + ... + 43570.

It is an arithmetic number, because the mean of its divisors is an integer number (10768000).

Almost surely, 2^42985357 is an apocalyptic number.

It is an amenable number.

42985357 is a deficient number, since it is larger than the sum of its proper divisors (86643).

42985357 is an equidigital number, since it uses as much as digits as its factorization.

42985357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86642.

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

The square root of 42985357 is about 6556.3219109498. The cubic root of 42985357 is about 350.3000338820.

The spelling of 42985357 in words is "forty-two million, nine hundred eighty-five thousand, three hundred fifty-seven".