765442 has 16 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 351808.

The previous prime is 765439. The next prime is 765461. The reversal of 765442 is 244567.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 765442.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359 + ... + 1837.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2⁷⁶⁵⁴⁴² is an apocalyptic number.

765442 is a deficient number, since it is larger than the sum of its proper divisors (478718).

765442 is a wasteful number, since it uses less digits than its factorization.

765442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its digits is 6720, while the sum is 28.

The square root of 765442 is about 874.8954223220. The cubic root of 765442 is about 91.4753534302.

The spelling of 765442 in words is "seven hundred sixty-five thousand, four hundred forty-two".