605440401 has 8 divisors (see below), whose sum is σ = 813146784. Its totient is φ = 400680480.

The previous prime is 605440379. The next prime is 605440403. The reversal of 605440401 is 104044506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 605440401 - 2¹⁷ = 605309329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (605440403) 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 7 ways as a sum of consecutive naturals, for example, 736135 + ... + 736956.

It is an arithmetic number, because the mean of its divisors is an integer number (101643348).

Almost surely, 2^605440401 is an apocalyptic number.

It is an amenable number.

605440401 is a deficient number, since it is larger than the sum of its proper divisors (207706383).

605440401 is a wasteful number, since it uses less digits than its factorization.

605440401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473231.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 605440401 is about 24605.6985472878. The cubic root of 605440401 is about 845.9742278195.

Adding to 605440401 its reverse (104044506), we get a palindrome (709484907).

The spelling of 605440401 in words is "six hundred five million, four hundred forty thousand, four hundred one".