74187242 has 8 divisors (see below), whose sum is σ = 111388932. Its totient is φ = 37057600.

The previous prime is 74187233. The next prime is 74187299. The reversal of 74187242 is 24278147.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74114881 + 72361 = 8609^2 + 269^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15359 + ... + 19602.

Almost surely, 2^74187242 is an apocalyptic number.

74187242 is a deficient number, since it is larger than the sum of its proper divisors (37201690).

74187242 is a wasteful number, since it uses less digits than its factorization.

74187242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36024.

The product of its digits is 25088, while the sum is 35.

The square root of 74187242 is about 8613.2016114799. The cubic root of 74187242 is about 420.1874484522.

The spelling of 74187242 in words is "seventy-four million, one hundred eighty-seven thousand, two hundred forty-two".