42381100 has 36 divisors (see below), whose sum is σ = 92659000. Its totient is φ = 16824960.

The previous prime is 42381071. The next prime is 42381109. The reversal of 42381100 is 118324.

42381100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42381109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 12376 + ... + 15424.

Almost surely, 2^42381100 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 42381100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46329500).

42381100 is an abundant number, since it is smaller than the sum of its proper divisors (50277900).

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

42381100 is a wasteful number, since it uses less digits than its factorization.

42381100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202 (or 3195 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 42381100 is about 6510.0768044624. The cubic root of 42381100 is about 348.6508605978.

Adding to 42381100 its reverse (118324), we get a palindrome (42499424).

The spelling of 42381100 in words is "forty-two million, three hundred eighty-one thousand, one hundred".