605209872 has 80 divisors (see below), whose sum is σ = 1590437888. Its totient is φ = 198288000.

The previous prime is 605209859. The next prime is 605209889. The reversal of 605209872 is 278902506.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 605209872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805497 + ... + 806247.

Almost surely, 2^605209872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 605209872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795218944).

605209872 is an abundant number, since it is smaller than the sum of its proper divisors (985228016).

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

605209872 is a wasteful number, since it uses less digits than its factorization.

605209872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 605209872 is about 24601.0136376532. The cubic root of 605209872 is about 845.8668424353.

The spelling of 605209872 in words is "six hundred five million, two hundred nine thousand, eight hundred seventy-two".