42885311 has 4 divisors (see below), whose sum is σ = 49011792. Its totient is φ = 36758832.

The previous prime is 42885301. The next prime is 42885313. The reversal of 42885311 is 11358824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42885311 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 (42885313) 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, 3063230 + ... + 3063243.

It is an arithmetic number, because the mean of its divisors is an integer number (12252948).

Almost surely, 2^42885311 is an apocalyptic number.

42885311 is a deficient number, since it is larger than the sum of its proper divisors (6126481).

42885311 is an equidigital number, since it uses as much as digits as its factorization.

42885311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126480.

The product of its digits is 7680, while the sum is 32.

The square root of 42885311 is about 6548.6877311413. The cubic root of 42885311 is about 350.0280548940.

The spelling of 42885311 in words is "forty-two million, eight hundred eighty-five thousand, three hundred eleven".