74081312 has 24 divisors (see below), whose sum is σ = 150878700. Its totient is φ = 35762944.

The previous prime is 74081311. The next prime is 74081327. The reversal of 74081312 is 21318047.

It can be written as a sum of positive squares in 2 ways, for example, as 73891216 + 190096 = 8596^2 + 436^2 .

It is not an unprimeable number, because it can be changed into a prime (74081311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38987 + ... + 40842.

Almost surely, 2^74081312 is an apocalyptic number.

It is an amenable number.

74081312 is an abundant number, since it is smaller than the sum of its proper divisors (76797388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74081312 is a wasteful number, since it uses less digits than its factorization.

74081312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79868 (or 79860 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 74081312 is about 8607.0501334662. The cubic root of 74081312 is about 419.9873616756.

Adding to 74081312 its reverse (21318047), we get a palindrome (95399359).

The spelling of 74081312 in words is "seventy-four million, eighty-one thousand, three hundred twelve".