844888442 has 4 divisors (see below), whose sum is σ = 1267332666. Its totient is φ = 422444220.

The previous prime is 844888441. The next prime is 844888469. The reversal of 844888442 is 244888448.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 785736961 + 59151481 = 28031^2 + 7691^2 .

It is not an unprimeable number, because it can be changed into a prime (844888441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211222109 + ... + 211222112.

Almost surely, 2^844888442 is an apocalyptic number.

844888442 is a deficient number, since it is larger than the sum of its proper divisors (422444224).

844888442 is a wasteful number, since it uses less digits than its factorization.

844888442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422444223.

The product of its digits is 2097152, while the sum is 50.

The square root of 844888442 is about 29066.9647882265. The cubic root of 844888442 is about 945.3655881377.

The spelling of 844888442 in words is "eight hundred forty-four million, eight hundred eighty-eight thousand, four hundred forty-two".