765426 has 32 divisors (see below), whose sum is σ = 1632960. Its totient is φ = 238784.

The previous prime is 765409. The next prime is 765437. The reversal of 765426 is 624567.

It is a super-2 number, since 2×765426² = 1171753922952, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 765393 and 765402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9181 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2⁷⁶⁵⁴²⁶ is an apocalyptic number.

765426 is an abundant number, since it is smaller than the sum of its proper divisors (867534).

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

765426 is a wasteful number, since it uses less digits than its factorization.

765426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170.

The product of its digits is 10080, while the sum is 30.

The square root of 765426 is about 874.8862783242. The cubic root of 765426 is about 91.4747160574.

The spelling of 765426 in words is "seven hundred sixty-five thousand, four hundred twenty-six".