404521063 has 4 divisors (see below), whose sum is σ = 406756168. Its totient is φ = 402285960.

The previous prime is 404521043. The next prime is 404521141. The reversal of 404521063 is 360125404.

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

It is a cyclic number.

It is not a de Polignac number, because 404521063 - 2¹⁷ = 404389991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404521003) by changing a digit.

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, 1117281 + ... + 1117642.

It is an arithmetic number, because the mean of its divisors is an integer number (101689042).

Almost surely, 2^404521063 is an apocalyptic number.

404521063 is a deficient number, since it is larger than the sum of its proper divisors (2235105).

404521063 is a wasteful number, since it uses less digits than its factorization.

404521063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235104.

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

The square root of 404521063 is about 20112.7089920776. The cubic root of 404521063 is about 739.5718627643.

Adding to 404521063 its reverse (360125404), we get a palindrome (764646467).

The spelling of 404521063 in words is "four hundred four million, five hundred twenty-one thousand, sixty-three".