42271104 has 128 divisors (see below), whose sum is σ = 119854080. Its totient is φ = 13178880.

The previous prime is 42271069. The next prime is 42271121. The reversal of 42271104 is 40117224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630879 + ... + 630945.

It is an arithmetic number, because the mean of its divisors is an integer number (936360).

Almost surely, 2^42271104 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 42271104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59927040).

42271104 is an abundant number, since it is smaller than the sum of its proper divisors (77582976).

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

42271104 is a wasteful number, since it uses less digits than its factorization.

42271104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 42271104 is about 6501.6231819446. The cubic root of 42271104 is about 348.3489695343.

Adding to 42271104 its reverse (40117224), we get a palindrome (82388328).

The spelling of 42271104 in words is "forty-two million, two hundred seventy-one thousand, one hundred four".