42881100 has 72 divisors (see below), whose sum is σ = 130616640. Its totient is φ = 10831680.

The previous prime is 42881099. The next prime is 42881101. The reversal of 42881100 is 118824.

It is an interprime number because it is at equal distance from previous prime (42881099) and next prime (42881101).

It is not an unprimeable number, because it can be changed into a prime (42881101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1939 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (1814120).

Almost surely, 2^42881100 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 42881100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65308320).

42881100 is an abundant number, since it is smaller than the sum of its proper divisors (87735540).

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

42881100 is a wasteful number, since it uses less digits than its factorization.

42881100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559 (or 7552 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 42881100 is about 6548.3662084523. The cubic root of 42881100 is about 350.0165978523.

Adding to 42881100 its reverse (118824), we get a palindrome (42999924).

The spelling of 42881100 in words is "forty-two million, eight hundred eighty-one thousand, one hundred".