42906111 has 8 divisors (see below), whose sum is σ = 57239040. Its totient is φ = 28588632.

The previous prime is 42906089. The next prime is 42906137. The reversal of 42906111 is 11160924.

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

It is not a de Polignac number, because 42906111 - 2⁷ = 42905983 is a prime.

It is a super-2 number, since 2×42906111² = 3681868722288642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42905111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6930 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (7154880).

Almost surely, 2^42906111 is an apocalyptic number.

42906111 is a deficient number, since it is larger than the sum of its proper divisors (14332929).

42906111 is a wasteful number, since it uses less digits than its factorization.

42906111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 42906111 is about 6550.2756430550. The cubic root of 42906111 is about 350.0846353146.

It can be divided in two parts, 4290 and 6111, that added together give a palindrome (10401).

The spelling of 42906111 in words is "forty-two million, nine hundred six thousand, one hundred eleven".