75317040 has 200 divisors, whose sum is σ = 267371280. Its totient is φ = 19643904.

The previous prime is 75317029. The next prime is 75317059. The reversal of 75317040 is 4071357.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 75316995 and 75317013.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 382222 + ... + 382418.

Almost surely, 2^75317040 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 75317040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133685640).

75317040 is an abundant number, since it is smaller than the sum of its proper divisors (192054240).

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

75317040 is a wasteful number, since it uses less digits than its factorization.

75317040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 75317040 is about 8678.5390475586. The cubic root of 75317040 is about 422.3097237342.

Adding to 75317040 its reverse (4071357), we get a palindrome (79388397).

The spelling of 75317040 in words is "seventy-five million, three hundred seventeen thousand, forty".