42249111 has 8 divisors (see below), whose sum is σ = 56678400. Its totient is φ = 27992952.

The previous prime is 42249107. The next prime is 42249127. The reversal of 42249111 is 11194224.

42249111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42249111 - 2² = 42249107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42249161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42711 + ... + 43688.

It is an arithmetic number, because the mean of its divisors is an integer number (7084800).

Almost surely, 2^42249111 is an apocalyptic number.

42249111 is a deficient number, since it is larger than the sum of its proper divisors (14429289).

42249111 is a wasteful number, since it uses less digits than its factorization.

42249111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86565.

The product of its digits is 576, while the sum is 24.

The square root of 42249111 is about 6499.9316150249. The cubic root of 42249111 is about 348.2885455313.

The spelling of 42249111 in words is "forty-two million, two hundred forty-nine thousand, one hundred eleven".