765040 has 40 divisors (see below), whose sum is σ = 1816848. Its totient is φ = 299520.

The previous prime is 765031. The next prime is 765041. The reversal of 765040 is 40567.

765040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5775 + ... + 5905.

2⁷⁶⁵⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908424).

765040 is an abundant number, since it is smaller than the sum of its proper divisors (1051808).

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

765040 is a wasteful number, since it uses less digits than its factorization.

765040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 765040 is about 874.6656504059. The cubic root of 765040 is about 91.4593367447.

The spelling of 765040 in words is "seven hundred sixty-five thousand, forty".