404363561 has 8 divisors (see below), whose sum is σ = 462257664. Its totient is φ = 346501440.

The previous prime is 404363551. The next prime is 404363587. The reversal of 404363561 is 165363404.

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 404363561 - 2⁶ = 404363497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404363551) 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 7 ways as a sum of consecutive naturals, for example, 33416 + ... + 43878.

It is an arithmetic number, because the mean of its divisors is an integer number (57782208).

Almost surely, 2^404363561 is an apocalyptic number.

It is an amenable number.

404363561 is a deficient number, since it is larger than the sum of its proper divisors (57894103).

404363561 is a wasteful number, since it uses less digits than its factorization.

404363561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15991.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 404363561 is about 20108.7931263913. The cubic root of 404363561 is about 739.4758651519.

The spelling of 404363561 in words is "four hundred four million, three hundred sixty-three thousand, five hundred sixty-one".