76808540 has 48 divisors (see below), whose sum is σ = 164868480. Its totient is φ = 30051840.

The previous prime is 76808497. The next prime is 76808551. The reversal of 76808540 is 4580867.

It is a junction number, because it is equal to n+sod(n) for n = 76808494 and 76808503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273200 + ... + 273480.

It is an arithmetic number, because the mean of its divisors is an integer number (3434760).

Almost surely, 2^76808540 is an apocalyptic number.

It is an amenable number.

76808540 is an abundant number, since it is smaller than the sum of its proper divisors (88059940).

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

76808540 is a wasteful number, since it uses less digits than its factorization.

76808540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 76808540 is about 8764.0481513967. The cubic root of 76808540 is about 425.0791824783.

The spelling of 76808540 in words is "seventy-six million, eight hundred eight thousand, five hundred forty".