404882681 has 16 divisors (see below), whose sum is σ = 471279360. Its totient is φ = 340649280.

The previous prime is 404882677. The next prime is 404882759. The reversal of 404882681 is 186288404.

It is a cyclic number.

It is not a de Polignac number, because 404882681 - 2² = 404882677 is a prime.

It is a super-2 number, since 2×404882681² = 327859970747495522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404882641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378215 + ... + 379283.

It is an arithmetic number, because the mean of its divisors is an integer number (29454960).

Almost surely, 2^404882681 is an apocalyptic number.

It is an amenable number.

404882681 is a deficient number, since it is larger than the sum of its proper divisors (66396679).

404882681 is a wasteful number, since it uses less digits than its factorization.

404882681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024.

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 404882681 is about 20121.6967723897. The cubic root of 404882681 is about 739.7921750210.

The spelling of 404882681 in words is "four hundred four million, eight hundred eighty-two thousand, six hundred eighty-one".