42111822 has 32 divisors (see below), whose sum is σ = 89709984. Its totient is φ = 13132800.

The previous prime is 42111791. The next prime is 42111829. The reversal of 42111822 is 22811124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42111829) 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 15 ways as a sum of consecutive naturals, for example, 17322 + ... + 19602.

It is an arithmetic number, because the mean of its divisors is an integer number (2803437).

Almost surely, 2^42111822 is an apocalyptic number.

42111822 is an abundant number, since it is smaller than the sum of its proper divisors (47598162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42111822 is a wasteful number, since it uses less digits than its factorization.

42111822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484.

The product of its digits is 256, while the sum is 21.

The square root of 42111822 is about 6489.3622182769. The cubic root of 42111822 is about 347.9108802046.

Adding to 42111822 its reverse (22811124), we get a palindrome (64922946).

The spelling of 42111822 in words is "forty-two million, one hundred eleven thousand, eight hundred twenty-two".