605664420 has 48 divisors (see below), whose sum is σ = 1754343360. Its totient is φ = 155940736.

The previous prime is 605664413. The next prime is 605664421. The reversal of 605664420 is 24466506.

It is not an unprimeable number, because it can be changed into a prime (605664421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172302 + ... + 175781.

It is an arithmetic number, because the mean of its divisors is an integer number (36548820).

Almost surely, 2^605664420 is an apocalyptic number.

605664420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

605664420 is an abundant number, since it is smaller than the sum of its proper divisors (1148678940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

605664420 is a wasteful number, since it uses less digits than its factorization.

605664420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348124 (or 348122 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 605664420 is about 24610.2503034813. The cubic root of 605664420 is about 846.0785545933.

The spelling of 605664420 in words is "six hundred five million, six hundred sixty-four thousand, four hundred twenty".