767840 has 24 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 307072.

The previous prime is 767831. The next prime is 767843. The reversal of 767840 is 48767.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 767797 and 767806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (767843) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2240 + ... + 2559.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2⁷⁶⁷⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

767840 is an abundant number, since it is smaller than the sum of its proper divisors (1046560).

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

767840 is a wasteful number, since it uses less digits than its factorization.

767840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4814 (or 4806 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 767840 is about 876.2648001603. The cubic root of 767840 is about 91.5707794390.

The spelling of 767840 in words is "seven hundred sixty-seven thousand, eight hundred forty".