74243146 has 8 divisors (see below), whose sum is σ = 117226080. Its totient is φ = 35167788.

The previous prime is 74243111. The next prime is 74243153. The reversal of 74243146 is 64134247.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976846 + ... + 976921.

It is an arithmetic number, because the mean of its divisors is an integer number (14653260).

Almost surely, 2^74243146 is an apocalyptic number.

74243146 is a deficient number, since it is larger than the sum of its proper divisors (42982934).

74243146 is a wasteful number, since it uses less digits than its factorization.

74243146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953788.

The product of its digits is 16128, while the sum is 31.

The square root of 74243146 is about 8616.4462512105. The cubic root of 74243146 is about 420.2929664208.

The spelling of 74243146 in words is "seventy-four million, two hundred forty-three thousand, one hundred forty-six".