42040104 has 16 divisors (see below), whose sum is σ = 105100320. Its totient is φ = 14013360.

The previous prime is 42040093. The next prime is 42040109. The reversal of 42040104 is 40104024.

It is not an unprimeable number, because it can be changed into a prime (42040109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875812 + ... + 875859.

It is an arithmetic number, because the mean of its divisors is an integer number (6568770).

Almost surely, 2^42040104 is an apocalyptic number.

It is an amenable number.

42040104 is an abundant number, since it is smaller than the sum of its proper divisors (63060216).

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

42040104 is a wasteful number, since it uses less digits than its factorization.

42040104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751680 (or 1751676 counting only the distinct ones).

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

The square root of 42040104 is about 6483.8340509301. The cubic root of 42040104 is about 347.7132662555.

Adding to 42040104 its reverse (40104024), we get a palindrome (82144128).

The spelling of 42040104 in words is "forty-two million, forty thousand, one hundred four".