75389344 has 12 divisors (see below), whose sum is σ = 148422834. Its totient is φ = 37694656.

The previous prime is 75389341. The next prime is 75389371. The reversal of 75389344 is 44398357.

It can be written as a sum of positive squares in only one way, i.e., 67436944 + 7952400 = 8212^2 + 2820^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75389344.

It is not an unprimeable number, because it can be changed into a prime (75389341) 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 as a sum of consecutive naturals, namely, 1177927 + ... + 1177990.

Almost surely, 2^75389344 is an apocalyptic number.

It is an amenable number.

75389344 is a deficient number, since it is larger than the sum of its proper divisors (73033490).

75389344 is a wasteful number, since it uses less digits than its factorization.

75389344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355927 (or 2355919 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 75389344 is about 8682.7037263746. The cubic root of 75389344 is about 422.4448189549. Note that the first 3 decimals are identical.

The spelling of 75389344 in words is "seventy-five million, three hundred eighty-nine thousand, three hundred forty-four".