404646401 has 8 divisors (see below), whose sum is σ = 428088000. Its totient is φ = 381419280.

The previous prime is 404646391. The next prime is 404646409. The reversal of 404646401 is 104646404.

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 404646401 - 2²⁶ = 337537537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404646409) 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, 49730 + ... + 57291.

It is an arithmetic number, because the mean of its divisors is an integer number (53511000).

Almost surely, 2^404646401 is an apocalyptic number.

It is an amenable number.

404646401 is a deficient number, since it is larger than the sum of its proper divisors (23441599).

404646401 is a wasteful number, since it uses less digits than its factorization.

404646401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107239.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 404646401 is about 20115.8246413116. The cubic root of 404646401 is about 739.6482385862.

The spelling of 404646401 in words is "four hundred four million, six hundred forty-six thousand, four hundred one".