404865361 has 8 divisors (see below), whose sum is σ = 409971240. Its totient is φ = 399772032.

The previous prime is 404865347. The next prime is 404865367. The reversal of 404865361 is 163568404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40246336 + 364619025 = 6344^2 + 19095^2 .

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 404865361 - 2²¹ = 402768209 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 404865361.

It is not an unprimeable number, because it can be changed into a prime (404865367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73251 + ... + 78583.

It is an arithmetic number, because the mean of its divisors is an integer number (51246405).

Almost surely, 2^404865361 is an apocalyptic number.

It is an amenable number.

404865361 is a deficient number, since it is larger than the sum of its proper divisors (5105879).

404865361 is an equidigital number, since it uses as much as digits as its factorization.

404865361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 404865361 is about 20121.2663865871. The cubic root of 404865361 is about 739.7816259708.

The spelling of 404865361 in words is "four hundred four million, eight hundred sixty-five thousand, three hundred sixty-one".