75470144 has 28 divisors (see below), whose sum is σ = 150170388. Its totient is φ = 37632000.

The previous prime is 75470099. The next prime is 75470167. The reversal of 75470144 is 44107457.

It can be written as a sum of positive squares in 2 ways, for example, as 13249600 + 62220544 = 3640^2 + 7888^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 75470144.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25544 + ... + 28344.

Almost surely, 2^75470144 is an apocalyptic number.

It is an amenable number.

75470144 is a deficient number, since it is larger than the sum of its proper divisors (74700244).

75470144 is a wasteful number, since it uses less digits than its factorization.

75470144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3224 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 75470144 is about 8687.3554088687. The cubic root of 75470144 is about 422.5956862278.

The spelling of 75470144 in words is "seventy-five million, four hundred seventy thousand, one hundred forty-four".