42911 has 8 divisors (see below), whose sum is σ = 48384. Its totient is φ = 37720.

The previous prime is 42901. The next prime is 42923. The reversal of 42911 is 11924.

42911 = 4² + 5² + ... + 50².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42911 - 2¹⁰ = 41887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 42911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476 + ... + 558.

It is an arithmetic number, because the mean of its divisors is an integer number (6048).

2⁴²⁹¹¹ is an apocalyptic number.

42911 is a deficient number, since it is larger than the sum of its proper divisors (5473).

42911 is a wasteful number, since it uses less digits than its factorization.

42911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141.

The product of its digits is 72, while the sum is 17.

The square root of 42911 is about 207.1497043203. The cubic root of 42911 is about 35.0097931779.

The spelling of 42911 in words is "forty-two thousand, nine hundred eleven".