75878140 has 48 divisors (see below), whose sum is σ = 181706112. Its totient is φ = 26366976.

The previous prime is 75878129. The next prime is 75878141. The reversal of 75878140 is 4187857.

It is a junction number, because it is equal to n+sod(n) for n = 75878093 and 75878102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75878141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4164 + ... + 13003.

It is an arithmetic number, because the mean of its divisors is an integer number (3785544).

Almost surely, 2^75878140 is an apocalyptic number.

It is an amenable number.

75878140 is an abundant number, since it is smaller than the sum of its proper divisors (105827972).

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

75878140 is a wasteful number, since it uses less digits than its factorization.

75878140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17206 (or 17204 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 75878140 is about 8710.8059328629. The cubic root of 75878140 is about 423.3558436925.

The spelling of 75878140 in words is "seventy-five million, eight hundred seventy-eight thousand, one hundred forty".