75426944 has 16 divisors (see below), whose sum is σ = 150264870. Its totient is φ = 37713408.

The previous prime is 75426931. The next prime is 75426947. The reversal of 75426944 is 44962457.

It can be written as a sum of positive squares in only one way, i.e., 59105344 + 16321600 = 7688^2 + 4040^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (75426947) 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, 294509 + ... + 294764.

Almost surely, 2^75426944 is an apocalyptic number.

It is an amenable number.

75426944 is a deficient number, since it is larger than the sum of its proper divisors (74837926).

75426944 is an equidigital number, since it uses as much as digits as its factorization.

75426944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589287 (or 589275 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 75426944 is about 8684.8686806422. The cubic root of 75426944 is about 422.5150379205.

The spelling of 75426944 in words is "seventy-five million, four hundred twenty-six thousand, nine hundred forty-four".