604444431 has 4 divisors (see below), whose sum is σ = 805925912. Its totient is φ = 402962952.

The previous prime is 604444403. The next prime is 604444447. The reversal of 604444431 is 134444406.

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

It is not a de Polignac number, because 604444431 - 2¹⁰ = 604443407 is a prime.

It is a super-4 number, since 4×604444431⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604442431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100740736 + ... + 100740741.

It is an arithmetic number, because the mean of its divisors is an integer number (201481478).

Almost surely, 2^604444431 is an apocalyptic number.

604444431 is a deficient number, since it is larger than the sum of its proper divisors (201481481).

604444431 is a wasteful number, since it uses less digits than its factorization.

604444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201481480.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 604444431 is about 24585.4516126916. The cubic root of 604444431 is about 845.5100877825.

Adding to 604444431 its reverse (134444406), we get a palindrome (738888837).

The spelling of 604444431 in words is "six hundred four million, four hundred forty-four thousand, four hundred thirty-one".