74688812 has 24 divisors (see below), whose sum is σ = 144399360. Its totient is φ = 33518160.

The previous prime is 74688811. The next prime is 74688821. The reversal of 74688812 is 21888647.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (74688811) 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 7 ways as a sum of consecutive naturals, for example, 7268 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (6016640).

Almost surely, 2^74688812 is an apocalyptic number.

It is an amenable number.

74688812 is a deficient number, since it is larger than the sum of its proper divisors (69710548).

74688812 is a wasteful number, since it uses less digits than its factorization.

74688812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21581 (or 21579 counting only the distinct ones).

The product of its digits is 172032, while the sum is 44.

The square root of 74688812 is about 8642.2689150477. The cubic root of 74688812 is about 421.1322660528.

It can be divided in two parts, 74 and 688812, that added together give a palindrome (688886).

The spelling of 74688812 in words is "seventy-four million, six hundred eighty-eight thousand, eight hundred twelve".