78044312 has 32 divisors (see below), whose sum is σ = 150427200. Its totient is φ = 37939104.

The previous prime is 78044311. The next prime is 78044321. The reversal of 78044312 is 21344087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78044311) 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, 105239 + ... + 105977.

It is an arithmetic number, because the mean of its divisors is an integer number (4700850).

Almost surely, 2^78044312 is an apocalyptic number.

It is an amenable number.

78044312 is a deficient number, since it is larger than the sum of its proper divisors (72382888).

78044312 is a wasteful number, since it uses less digits than its factorization.

78044312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1091 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 78044312 is about 8834.2691831300. The cubic root of 78044312 is about 427.3467631313.

Adding to 78044312 its reverse (21344087), we get a palindrome (99388399).

The spelling of 78044312 in words is "seventy-eight million, forty-four thousand, three hundred twelve".