75840540 has 24 divisors (see below), whose sum is σ = 212353680. Its totient is φ = 20224128.

The previous prime is 75840467. The next prime is 75840551. The reversal of 75840540 is 4504857.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631945 + ... + 632064.

It is an arithmetic number, because the mean of its divisors is an integer number (8848070).

Almost surely, 2^75840540 is an apocalyptic number.

It is an amenable number.

75840540 is an abundant number, since it is smaller than the sum of its proper divisors (136513140).

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

75840540 is a wasteful number, since it uses less digits than its factorization.

75840540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264021 (or 1264019 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 75840540 is about 8708.6474265525. The cubic root of 75840540 is about 423.2859034358.

The spelling of 75840540 in words is "seventy-five million, eight hundred forty thousand, five hundred forty".