75516340 has 12 divisors (see below), whose sum is σ = 158584356. Its totient is φ = 30206528.

The previous prime is 75516323. The next prime is 75516347. The reversal of 75516340 is 4361557.

It can be written as a sum of positive squares in 2 ways, for example, as 8832784 + 66683556 = 2972^2 + 8166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75516347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887889 + ... + 1887928.

It is an arithmetic number, because the mean of its divisors is an integer number (13215363).

Almost surely, 2^75516340 is an apocalyptic number.

It is an amenable number.

75516340 is an abundant number, since it is smaller than the sum of its proper divisors (83068016).

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

75516340 is a wasteful number, since it uses less digits than its factorization.

75516340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775826 (or 3775824 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 75516340 is about 8690.0138089649. The cubic root of 75516340 is about 422.6818936002.

Adding to 75516340 its reverse (4361557), we get a palindrome (79877897).

The spelling of 75516340 in words is "seventy-five million, five hundred sixteen thousand, three hundred forty".