42104142 has 12 divisors (see below), whose sum is σ = 91225680. Its totient is φ = 14034708.

The previous prime is 42104141. The next prime is 42104159. The reversal of 42104142 is 24140124.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2339119 = 42104142 / (4 + 2 + 1 + 0 + 4 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42104141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1169542 + ... + 1169577.

It is an arithmetic number, because the mean of its divisors is an integer number (7602140).

Almost surely, 2^42104142 is an apocalyptic number.

42104142 is an abundant number, since it is smaller than the sum of its proper divisors (49121538).

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

42104142 is a wasteful number, since it uses less digits than its factorization.

42104142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339127 (or 2339124 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 42104142 is about 6488.7704536376. The cubic root of 42104142 is about 347.8897292318.

Adding to 42104142 its reverse (24140124), we get a palindrome (66244266).

The spelling of 42104142 in words is "forty-two million, one hundred four thousand, one hundred forty-two".