842099770 has 32 divisors (see below), whose sum is σ = 1527413760. Its totient is φ = 334266240.

The previous prime is 842099747. The next prime is 842099771. The reversal of 842099770 is 77990248.

It is a self number, because there is not a number n which added to its sum of digits gives 842099770.

It is not an unprimeable number, because it can be changed into a prime (842099771) 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, 1106190 + ... + 1106950.

It is an arithmetic number, because the mean of its divisors is an integer number (47731680).

Almost surely, 2^842099770 is an apocalyptic number.

842099770 is a deficient number, since it is larger than the sum of its proper divisors (685313990).

842099770 is a wasteful number, since it uses less digits than its factorization.

842099770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 842099770 is about 29018.9553568008. The cubic root of 842099770 is about 944.3243380932.

The spelling of 842099770 in words is "eight hundred forty-two million, ninety-nine thousand, seven hundred seventy".