765428466 has 64 divisors (see below), whose sum is σ = 1719843840. Its totient is φ = 225099840.

The previous prime is 765428449. The next prime is 765428483. The reversal of 765428466 is 664824567.

It is an interprime number because it is at equal distance from previous prime (765428449) and next prime (765428483).

It is a super-2 number, since 2×765428466² = 1171761473126226312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490195 + ... + 491753.

It is an arithmetic number, because the mean of its divisors is an integer number (26872560).

Almost surely, 2^765428466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765428466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859921920).

765428466 is an abundant number, since it is smaller than the sum of its proper divisors (954415374).

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

765428466 is a wasteful number, since it uses less digits than its factorization.

765428466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its digits is 1935360, while the sum is 48.

The square root of 765428466 is about 27666.3778980914. The cubic root of 765428466 is about 914.7481429306.

The spelling of 765428466 in words is "seven hundred sixty-five million, four hundred twenty-eight thousand, four hundred sixty-six".