74243042 has 4 divisors (see below), whose sum is σ = 111364566. Its totient is φ = 37121520.

The previous prime is 74243017. The next prime is 74243083. The reversal of 74243042 is 24034247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57441241 + 16801801 = 7579^2 + 4099^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18560759 + ... + 18560762.

Almost surely, 2^74243042 is an apocalyptic number.

74243042 is a deficient number, since it is larger than the sum of its proper divisors (37121524).

74243042 is a wasteful number, since it uses less digits than its factorization.

74243042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37121523.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 74243042 is about 8616.4402162378. The cubic root of 74243042 is about 420.2927701716.

Adding to 74243042 its reverse (24034247), we get a palindrome (98277289).

The spelling of 74243042 in words is "seventy-four million, two hundred forty-three thousand, forty-two".