842944936 has 8 divisors (see below), whose sum is σ = 1580521770. Its totient is φ = 421472464.

The previous prime is 842944933. The next prime is 842944951. The reversal of 842944936 is 639449248.

It can be written as a sum of positive squares in only one way, i.e., 772284100 + 70660836 = 27790^2 + 8406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 842944936.

It is not an unprimeable number, because it can be changed into a prime (842944933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52684051 + ... + 52684066.

Almost surely, 2^842944936 is an apocalyptic number.

It is an amenable number.

842944936 is a deficient number, since it is larger than the sum of its proper divisors (737576834).

842944936 is a wasteful number, since it uses less digits than its factorization.

842944936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105368123 (or 105368119 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 49.

The square root of 842944936 is about 29033.5140139805. The cubic root of 842944936 is about 944.6401533901.

The spelling of 842944936 in words is "eight hundred forty-two million, nine hundred forty-four thousand, nine hundred thirty-six".