42004243100 has 72 divisors (see below), whose sum is σ = 93151204608. Its totient is φ = 16433150400.

The previous prime is 42004243079. The next prime is 42004243111. The reversal of 42004243100 is 134240024.

It is a super-2 number, since 2×42004243100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12608435 + ... + 12611765.

Almost surely, 2^42004243100 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 42004243100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46575602304).

42004243100 is an abundant number, since it is smaller than the sum of its proper divisors (51146961508).

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

42004243100 is a wasteful number, since it uses less digits than its factorization.

42004243100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075 (or 6068 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 42004243100 its reverse (134240024), we get a palindrome (42138483124).

The spelling of 42004243100 in words is "forty-two billion, four million, two hundred forty-three thousand, one hundred".