74243842 has 8 divisors (see below), whose sum is σ = 112447296. Its totient is φ = 36761412.

The previous prime is 74243833. The next prime is 74243881. The reversal of 74243842 is 24834247.

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

It is a junction number, because it is equal to n+sod(n) for n = 74243798 and 74243807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179998 + ... + 180409.

It is an arithmetic number, because the mean of its divisors is an integer number (14055912).

Almost surely, 2^74243842 is an apocalyptic number.

74243842 is a deficient number, since it is larger than the sum of its proper divisors (38203454).

74243842 is a wasteful number, since it uses less digits than its factorization.

74243842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360512.

The product of its digits is 43008, while the sum is 34.

The square root of 74243842 is about 8616.4866389962. The cubic root of 74243842 is about 420.2942797766.

The spelling of 74243842 in words is "seventy-four million, two hundred forty-three thousand, eight hundred forty-two".