404025361 has 4 divisors (see below), whose sum is σ = 417957300. Its totient is φ = 390093424.

The previous prime is 404025319. The next prime is 404025373. The reversal of 404025361 is 163520404.

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 238517136 + 165508225 = 15444^2 + 12865^2 .

It is a cyclic number.

It is not a de Polignac number, because 404025361 - 2¹⁵ = 403992593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404020361) 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, 6965926 + ... + 6965983.

It is an arithmetic number, because the mean of its divisors is an integer number (104489325).

Almost surely, 2^404025361 is an apocalyptic number.

It is an amenable number.

404025361 is a deficient number, since it is larger than the sum of its proper divisors (13931939).

404025361 is a wasteful number, since it uses less digits than its factorization.

404025361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13931938.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 404025361 is about 20100.3821107958. The cubic root of 404025361 is about 739.2696476804.

Adding to 404025361 its reverse (163520404), we get a palindrome (567545765).

The spelling of 404025361 in words is "four hundred four million, twenty-five thousand, three hundred sixty-one".