842800905 has 24 divisors (see below), whose sum is σ = 1462406400. Its totient is φ = 449016480.

The previous prime is 842800867. The next prime is 842800919. The reversal of 842800905 is 509008248.

842800905 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 842800905 - 2¹¹ = 842798857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 842800905.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35146 + ... + 54044.

It is an arithmetic number, because the mean of its divisors is an integer number (60933600).

Almost surely, 2^842800905 is an apocalyptic number.

It is an amenable number.

842800905 is a deficient number, since it is larger than the sum of its proper divisors (619605495).

842800905 is a wasteful number, since it uses less digits than its factorization.

842800905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901 (or 19898 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 842800905 is about 29031.0334814316. The cubic root of 842800905 is about 944.5863478922.

The spelling of 842800905 in words is "eight hundred forty-two million, eight hundred thousand, nine hundred five".