605420421 has 32 divisors (see below), whose sum is σ = 873062400. Its totient is φ = 372081600.

The previous prime is 605420419. The next prime is 605420429. The reversal of 605420421 is 124024506.

605420421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 605420421 - 2¹ = 605420419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 605420391 and 605420400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605420429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 746106 + ... + 746916.

It is an arithmetic number, because the mean of its divisors is an integer number (27283200).

Almost surely, 2^605420421 is an apocalyptic number.

It is an amenable number.

605420421 is a deficient number, since it is larger than the sum of its proper divisors (267641979).

605420421 is a wasteful number, since it uses less digits than its factorization.

605420421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217.

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

The square root of 605420421 is about 24605.2925404272. The cubic root of 605420421 is about 845.9649217833.

Adding to 605420421 its reverse (124024506), we get a palindrome (729444927).

The spelling of 605420421 in words is "six hundred five million, four hundred twenty thousand, four hundred twenty-one".