404440801 has 2 divisors, whose sum is σ = 404440802. Its totient is φ = 404440800.

The previous prime is 404440753. The next prime is 404440853. The reversal of 404440801 is 108044404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247590225 + 156850576 = 15735^2 + 12524^2 .

It is a cyclic number.

It is not a de Polignac number, because 404440801 - 2¹⁷ = 404309729 is a prime.

It is not a weakly prime, because it can be changed into another prime (404440871) 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 as a sum of consecutive naturals, namely, 202220400 + 202220401.

It is an arithmetic number, because the mean of its divisors is an integer number (202220401).

Almost surely, 2^404440801 is an apocalyptic number.

It is an amenable number.

404440801 is a deficient number, since it is larger than the sum of its proper divisors (1).

404440801 is an equidigital number, since it uses as much as digits as its factorization.

404440801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 404440801 is about 20110.7135875384. The cubic root of 404440801 is about 739.5229461164.

The spelling of 404440801 in words is "four hundred four million, four hundred forty thousand, eight hundred one".