74744378 has 8 divisors (see below), whose sum is σ = 112217268. Its totient is φ = 37338624.

The previous prime is 74744377. The next prime is 74744389. The reversal of 74744378 is 87344747.

It can be written as a sum of positive squares in 2 ways, for example, as 63568729 + 11175649 = 7973^2 + 3343^2 .

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

It is not an unprimeable number, because it can be changed into a prime (74744377) 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 in 3 ways as a sum of consecutive naturals, for example, 13901 + ... + 18512.

Almost surely, 2^74744378 is an apocalyptic number.

74744378 is a deficient number, since it is larger than the sum of its proper divisors (37472890).

74744378 is a wasteful number, since it uses less digits than its factorization.

74744378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33568.

The product of its digits is 526848, while the sum is 44.

The square root of 74744378 is about 8645.4830981270. The cubic root of 74744378 is about 421.2366763126.

The spelling of 74744378 in words is "seventy-four million, seven hundred forty-four thousand, three hundred seventy-eight".