42044100 has 72 divisors (see below), whose sum is σ = 139032768. Its totient is φ = 9609600.

The previous prime is 42044089. The next prime is 42044117. The reversal of 42044100 is 144024.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 42044100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7911 + ... + 12110.

Almost surely, 2^42044100 is an apocalyptic number.

It is an amenable number.

42044100 is an abundant number, since it is smaller than the sum of its proper divisors (96988668).

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

42044100 is a wasteful number, since it uses less digits than its factorization.

42044100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20045 (or 20038 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 42044100 is about 6484.1421946160. The cubic root of 42044100 is about 347.7242828647.

Adding to 42044100 its reverse (144024), we get a palindrome (42188124).

The spelling of 42044100 in words is "forty-two million, forty-four thousand, one hundred".