76808440 has 16 divisors (see below), whose sum is σ = 172819080. Its totient is φ = 30723360.

The previous prime is 76808437. The next prime is 76808441. The reversal of 76808440 is 4480867.

It is a self number, because there is not a number n which added to its sum of digits gives 76808440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76808441) 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, 960066 + ... + 960145.

Almost surely, 2^76808440 is an apocalyptic number.

It is an amenable number.

76808440 is an abundant number, since it is smaller than the sum of its proper divisors (96010640).

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

76808440 is a wasteful number, since it uses less digits than its factorization.

76808440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920222 (or 1920218 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 76808440 is about 8764.0424462687. The cubic root of 76808440 is about 425.0789980026.

The spelling of 76808440 in words is "seventy-six million, eight hundred eight thousand, four hundred forty".