74688148 has 12 divisors (see below), whose sum is σ = 130831092. Its totient is φ = 37307840.

The previous prime is 74688139. The next prime is 74688149. The reversal of 74688148 is 84188647.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51667344 + 23020804 = 7188^2 + 4798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74688098 and 74688107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74688149) by changing a digit.

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, 4123 + ... + 12898.

It is an arithmetic number, because the mean of its divisors is an integer number (10902591).

Almost surely, 2^74688148 is an apocalyptic number.

It is an amenable number.

74688148 is a deficient number, since it is larger than the sum of its proper divisors (56142944).

74688148 is a wasteful number, since it uses less digits than its factorization.

74688148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18122 (or 18120 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 74688148 is about 8642.2304991246. The cubic root of 74688148 is about 421.1310180628.

The spelling of 74688148 in words is "seventy-four million, six hundred eighty-eight thousand, one hundred forty-eight".