404882045 has 4 divisors (see below), whose sum is σ = 485858460. Its totient is φ = 323905632.

The previous prime is 404881993. The next prime is 404882059. The reversal of 404882045 is 540288404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137428729 + 267453316 = 11723^2 + 16354^2 .

It is a cyclic number.

It is not a de Polignac number, because 404882045 - 2¹⁶ = 404816509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 404881996 and 404882014.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40488200 + ... + 40488209.

It is an arithmetic number, because the mean of its divisors is an integer number (121464615).

Almost surely, 2^404882045 is an apocalyptic number.

It is an amenable number.

404882045 is a deficient number, since it is larger than the sum of its proper divisors (80976415).

404882045 is an equidigital number, since it uses as much as digits as its factorization.

404882045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80976414.

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 404882045 is about 20121.6809685473. The cubic root of 404882045 is about 739.7917876593.

The spelling of 404882045 in words is "four hundred four million, eight hundred eighty-two thousand, forty-five".