75495240 has 128 divisors (see below), whose sum is σ = 255052800. Its totient is φ = 20108736.

The previous prime is 75495239. The next prime is 75495263. The reversal of 75495240 is 4259457.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 75495195 and 75495204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87049 + ... + 87911.

It is an arithmetic number, because the mean of its divisors is an integer number (1992600).

Almost surely, 2^75495240 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 75495240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127526400).

75495240 is an abundant number, since it is smaller than the sum of its proper divisors (179557560).

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

75495240 is an equidigital number, since it uses as much as digits as its factorization.

75495240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 75495240 is about 8688.7996869533. The cubic root of 75495240 is about 422.6425227888.

The spelling of 75495240 in words is "seventy-five million, four hundred ninety-five thousand, two hundred forty".