404446121 has 4 divisors (see below), whose sum is σ = 411301200. Its totient is φ = 397591044.

The previous prime is 404446079. The next prime is 404446157. The reversal of 404446121 is 121644404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404446121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404446921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3427451 + ... + 3427568.

It is an arithmetic number, because the mean of its divisors is an integer number (102825300).

Almost surely, 2^404446121 is an apocalyptic number.

It is an amenable number.

404446121 is a deficient number, since it is larger than the sum of its proper divisors (6855079).

404446121 is an equidigital number, since it uses as much as digits as its factorization.

404446121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855078.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 404446121 is about 20110.8458549112. The cubic root of 404446121 is about 739.5261886551.

The spelling of 404446121 in words is "four hundred four million, four hundred forty-six thousand, one hundred twenty-one".