605440623 has 8 divisors (see below), whose sum is σ = 813611008. Its totient is φ = 400448664.

The previous prime is 605440613. The next prime is 605440651. The reversal of 605440623 is 326044506.

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

It is not a de Polignac number, because 605440623 - 2⁴ = 605440607 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 (605440603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794161 + ... + 794922.

It is an arithmetic number, because the mean of its divisors is an integer number (101701376).

Almost surely, 2^605440623 is an apocalyptic number.

605440623 is a deficient number, since it is larger than the sum of its proper divisors (208170385).

605440623 is a wasteful number, since it uses less digits than its factorization.

605440623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589213.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 605440623 is about 24605.7030584375. The cubic root of 605440623 is about 845.9743312188.

The spelling of 605440623 in words is "six hundred five million, four hundred forty thousand, six hundred twenty-three".