74042 has 4 divisors (see below), whose sum is σ = 111066. Its totient is φ = 37020.

The previous prime is 74027. The next prime is 74047. The reversal of 74042 is 24047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24047 = 139 ⋅173.

It can be written as a sum of positive squares in only one way, i.e., 72361 + 1681 = 269^2 + 41^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74042.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 74042.

It is not an unprimeable number, because it can be changed into a prime (74047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18509 + ... + 18512.

2⁷⁴⁰⁴² is an apocalyptic number.

74042 is a deficient number, since it is larger than the sum of its proper divisors (37024).

74042 is a wasteful number, since it uses less digits than its factorization.

74042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37023.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 74042 is about 272.1065967594. The cubic root of 74042 is about 41.9913058346.

Adding to 74042 its reverse (24047), we get a palindrome (98089).

The spelling of 74042 in words is "seventy-four thousand, forty-two", and thus it is an iban number.