42811104 has 144 divisors (see below), whose sum is σ = 137894400. Its totient is φ = 11563776.

The previous prime is 42811079. The next prime is 42811133. The reversal of 42811104 is 40111824.

It is a happy number.

42811104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 89137 + ... + 89615.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^42811104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42811104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68947200).

42811104 is an abundant number, since it is smaller than the sum of its proper divisors (95083296).

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

42811104 is a wasteful number, since it uses less digits than its factorization.

42811104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 510 counting only the distinct ones).

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

The square root of 42811104 is about 6543.0194864451. The cubic root of 42811104 is about 349.8260468914.

Adding to 42811104 its reverse (40111824), we get a palindrome (82922928).

The spelling of 42811104 in words is "forty-two million, eight hundred eleven thousand, one hundred four".