75117424 has 80 divisors (see below), whose sum is σ = 162712800. Its totient is φ = 33431552.

The previous prime is 75117403. The next prime is 75117439. The reversal of 75117424 is 42471157.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 701979 + ... + 702085.

It is an arithmetic number, because the mean of its divisors is an integer number (2033910).

Almost surely, 2^75117424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75117424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81356400).

75117424 is an abundant number, since it is smaller than the sum of its proper divisors (87595376).

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

75117424 is a wasteful number, since it uses less digits than its factorization.

75117424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 75117424 is about 8667.0308641426. The cubic root of 75117424 is about 421.9363050846.

The spelling of 75117424 in words is "seventy-five million, one hundred seventeen thousand, four hundred twenty-four".