404430541 has 4 divisors (see below), whose sum is σ = 404473084. Its totient is φ = 404388000.

The previous prime is 404430497. The next prime is 404430569. The reversal of 404430541 is 145034404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 107557641 + 296872900 = 10371^2 + 17230^2 .

It is a cyclic number.

It is not a de Polignac number, because 404430541 - 2¹³ = 404422349 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 (404430641) 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, 241 + ... + 28441.

It is an arithmetic number, because the mean of its divisors is an integer number (101118271).

Almost surely, 2^404430541 is an apocalyptic number.

It is an amenable number.

404430541 is a deficient number, since it is larger than the sum of its proper divisors (42543).

404430541 is a wasteful number, since it uses less digits than its factorization.

404430541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42542.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 404430541 is about 20110.4584980055. The cubic root of 404430541 is about 739.5166925687.

Adding to 404430541 its reverse (145034404), we get a palindrome (549464945).

The spelling of 404430541 in words is "four hundred four million, four hundred thirty thousand, five hundred forty-one".