75642242 has 16 divisors (see below), whose sum is σ = 123006912. Its totient is φ = 34678800.

The previous prime is 75642241. The next prime is 75642251. The reversal of 75642242 is 24224657.

It is a junction number, because it is equal to n+sod(n) for n = 75642199 and 75642208.

It is not an unprimeable number, because it can be changed into a prime (75642241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5708 + ... + 13559.

It is an arithmetic number, because the mean of its divisors is an integer number (7687932).

Almost surely, 2^75642242 is an apocalyptic number.

75642242 is a deficient number, since it is larger than the sum of its proper divisors (47364670).

75642242 is a wasteful number, since it uses less digits than its factorization.

75642242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19433.

The product of its digits is 26880, while the sum is 32.

The square root of 75642242 is about 8697.2548542629. The cubic root of 75642242 is about 422.9166637558.

Adding to 75642242 its reverse (24224657), we get a palindrome (99866899).

The spelling of 75642242 in words is "seventy-five million, six hundred forty-two thousand, two hundred forty-two".