404564401 has 8 divisors (see below), whose sum is σ = 416461760. Its totient is φ = 392717808.

The previous prime is 404564387. The next prime is 404564417. The reversal of 404564401 is 104465404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404564401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404564401.

It is not an unprimeable number, because it can be changed into a prime (404564431) 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, 3790 + ... + 28696.

It is an arithmetic number, because the mean of its divisors is an integer number (52057720).

Almost surely, 2^404564401 is an apocalyptic number.

It is an amenable number.

404564401 is a deficient number, since it is larger than the sum of its proper divisors (11897359).

404564401 is a wasteful number, since it uses less digits than its factorization.

404564401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25383.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 404564401 is about 20113.7863417110. The cubic root of 404564401 is about 739.5982729431.

The spelling of 404564401 in words is "four hundred four million, five hundred sixty-four thousand, four hundred one".