75409748 has 12 divisors (see below), whose sum is σ = 133201152. Its totient is φ = 37352280.

The previous prime is 75409723. The next prime is 75409771. The reversal of 75409748 is 84790457.

It is a junction number, because it is equal to n+sod(n) for n = 75409699 and 75409708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87668 + ... + 88523.

It is an arithmetic number, because the mean of its divisors is an integer number (11100096).

Almost surely, 2^75409748 is an apocalyptic number.

It is an amenable number.

75409748 is a deficient number, since it is larger than the sum of its proper divisors (57791404).

75409748 is a wasteful number, since it uses less digits than its factorization.

75409748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176302 (or 176300 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 75409748 is about 8683.8786265125. The cubic root of 75409748 is about 422.4829268453.

The spelling of 75409748 in words is "seventy-five million, four hundred nine thousand, seven hundred forty-eight".