75040442 has 8 divisors (see below), whose sum is σ = 112976832. Its totient is φ = 37381500.

The previous prime is 75040417. The next prime is 75040447. The reversal of 75040442 is 24404057.

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

It is not an unprimeable number, because it can be changed into a prime (75040447) 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 in 3 ways as a sum of consecutive naturals, for example, 68684 + ... + 69767.

It is an arithmetic number, because the mean of its divisors is an integer number (14122104).

Almost surely, 2^75040442 is an apocalyptic number.

75040442 is a deficient number, since it is larger than the sum of its proper divisors (37936390).

75040442 is a wasteful number, since it uses less digits than its factorization.

75040442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138724.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 75040442 is about 8662.5886431251. The cubic root of 75040442 is about 421.7921192612.

Adding to 75040442 its reverse (24404057), we get a palindrome (99444499).

The spelling of 75040442 in words is "seventy-five million, forty thousand, four hundred forty-two".