75308042 has 8 divisors (see below), whose sum is σ = 113298276. Its totient is φ = 37541952.

The previous prime is 75308029. The next prime is 75308047. The reversal of 75308042 is 24080357.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75186241 + 121801 = 8671^2 + 349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 75307996 and 75308014.

It is not an unprimeable number, because it can be changed into a prime (75308047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55193 + ... + 56540.

Almost surely, 2^75308042 is an apocalyptic number.

75308042 is a deficient number, since it is larger than the sum of its proper divisors (37990234).

75308042 is a wasteful number, since it uses less digits than its factorization.

75308042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112072.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 75308042 is about 8678.0206268480. The cubic root of 75308042 is about 422.2929055205.

Adding to 75308042 its reverse (24080357), we get a palindrome (99388399).

The spelling of 75308042 in words is "seventy-five million, three hundred eight thousand, forty-two".