404650561 has 8 divisors (see below), whose sum is σ = 468312320. Its totient is φ = 342452448.

The previous prime is 404650549. The next prime is 404650573. The reversal of 404650561 is 165056404.

It is an interprime number because it is at equal distance from previous prime (404650549) and next prime (404650573).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404650561 - 2⁵ = 404650529 is a prime.

It is a super-2 number, since 2×404650561² = 327484153035229442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404650501) 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 7 ways as a sum of consecutive naturals, for example, 365316 + ... + 366421.

It is an arithmetic number, because the mean of its divisors is an integer number (58539040).

Almost surely, 2^404650561 is an apocalyptic number.

It is an amenable number.

404650561 is a deficient number, since it is larger than the sum of its proper divisors (63661759).

404650561 is an equidigital number, since it uses as much as digits as its factorization.

404650561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731823.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 404650561 is about 20115.9280422256. The cubic root of 404650561 is about 739.6507732487.

The spelling of 404650561 in words is "four hundred four million, six hundred fifty thousand, five hundred sixty-one".