74242 has 8 divisors (see below), whose sum is σ = 127296. Its totient is φ = 31812.

The previous prime is 74231. The next prime is 74257. The reversal of 74242 is 24247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

74242 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2638 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (15912).

2⁷⁴²⁴² is an apocalyptic number.

74242 is a deficient number, since it is larger than the sum of its proper divisors (53054).

74242 is a wasteful number, since it uses less digits than its factorization.

74242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5312.

The product of its digits is 448, while the sum is 19.

The square root of 74242 is about 272.4738519565. The cubic root of 74242 is about 42.0290803895.

Adding to 74242 its reverse (24247), we get a palindrome (98489).

It can be divided in two parts, 742 and 42, that added together give a square (784 = 28²).

The spelling of 74242 in words is "seventy-four thousand, two hundred forty-two", and thus it is an iban number.