74656018 has 4 divisors (see below), whose sum is σ = 111984030. Its totient is φ = 37328008.

The previous prime is 74656013. The next prime is 74656019. The reversal of 74656018 is 81065647.

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., 61889689 + 12766329 = 7867^2 + 3573^2 .

It is not an unprimeable number, because it can be changed into a prime (74656013) by changing a digit.

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 as a sum of consecutive naturals, namely, 18664003 + ... + 18664006.

Almost surely, 2^74656018 is an apocalyptic number.

74656018 is a deficient number, since it is larger than the sum of its proper divisors (37328012).

74656018 is a wasteful number, since it uses less digits than its factorization.

74656018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37328011.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 74656018 is about 8640.3714040543. The cubic root of 74656018 is about 421.0706207945.

The spelling of 74656018 in words is "seventy-four million, six hundred fifty-six thousand, eighteen".