75242688 has 28 divisors (see below), whose sum is σ = 199080120. Its totient is φ = 25080832.

The previous prime is 75242627. The next prime is 75242701. The reversal of 75242688 is 88624257.

It is a happy number.

It is a super-2 number, since 2×75242688² = 11322924194930688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195753 + ... + 196136.

Almost surely, 2^75242688 is an apocalyptic number.

It is an amenable number.

75242688 is an abundant number, since it is smaller than the sum of its proper divisors (123837432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75242688 is a wasteful number, since it uses less digits than its factorization.

75242688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391904 (or 391894 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 75242688 is about 8674.2543195366. The cubic root of 75242688 is about 422.1707117626.

The spelling of 75242688 in words is "seventy-five million, two hundred forty-two thousand, six hundred eighty-eight".