464005681 has 4 divisors (see below), whose sum is σ = 464128000. Its totient is φ = 463883364.

The previous prime is 464005643. The next prime is 464005687. The reversal of 464005681 is 186500464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 464005681 - 2⁹ = 464005169 is a prime.

It is a super-2 number, since 2×464005681² = 430602544000547522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464005687) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55281 + ... + 63118.

It is an arithmetic number, because the mean of its divisors is an integer number (116032000).

Almost surely, 2^464005681 is an apocalyptic number.

It is an amenable number.

464005681 is a deficient number, since it is larger than the sum of its proper divisors (122319).

464005681 is a wasteful number, since it uses less digits than its factorization.

464005681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122318.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 464005681 is about 21540.7910950364. The cubic root of 464005681 is about 774.1784876601.

The spelling of 464005681 in words is "four hundred sixty-four million, five thousand, six hundred eighty-one".