465681 has 16 divisors (see below), whose sum is σ = 687744. Its totient is φ = 278784.

The previous prime is 465679. The next prime is 465701. The reversal of 465681 is 186564.

It is not a de Polignac number, because 465681 - 2¹ = 465679 is a prime.

It is a super-2 number, since 2×465681² = 433717587522, which contains 22 as substring.

It is a Curzon number.

465681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (465611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975 + ... + 1371.

It is an arithmetic number, because the mean of its divisors is an integer number (42984).

2⁴⁶⁵⁶⁸¹ is an apocalyptic number.

It is an amenable number.

465681 is a deficient number, since it is larger than the sum of its proper divisors (222063).

465681 is a wasteful number, since it uses less digits than its factorization.

465681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its digits is 5760, while the sum is 30.

The square root of 465681 is about 682.4082355892. The cubic root of 465681 is about 77.5109107081.

The spelling of 465681 in words is "four hundred sixty-five thousand, six hundred eighty-one".