42271100 has 18 divisors (see below), whose sum is σ = 91728504. Its totient is φ = 16908400.

The previous prime is 42271069. The next prime is 42271121. The reversal of 42271100 is 117224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211256 + ... + 211455.

It is an arithmetic number, because the mean of its divisors is an integer number (5096028).

Almost surely, 2^42271100 is an apocalyptic number.

It is an amenable number.

42271100 is an abundant number, since it is smaller than the sum of its proper divisors (49457404).

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

42271100 is a wasteful number, since it uses less digits than its factorization.

42271100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422725 (or 422718 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 42271100 is about 6501.6228743291. The cubic root of 42271100 is about 348.3489585466.

Adding to 42271100 its reverse (117224), we get a palindrome (42388324).

The spelling of 42271100 in words is "forty-two million, two hundred seventy-one thousand, one hundred".