844095402 has 48 divisors (see below), whose sum is σ = 1913301000. Its totient is φ = 268595712.

The previous prime is 844095397. The next prime is 844095449. The reversal of 844095402 is 204590448.

It can be written as a sum of positive squares in 4 ways, for example, as 457147161 + 386948241 = 21381^2 + 19671^2 .

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 37374 + ... + 55542.

Almost surely, 2^844095402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844095402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956650500).

844095402 is an abundant number, since it is smaller than the sum of its proper divisors (1069205598).

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

844095402 is a wasteful number, since it uses less digits than its factorization.

844095402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18295 (or 18292 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 844095402 is about 29053.3199824048. The cubic root of 844095402 is about 945.0697118305.

The spelling of 844095402 in words is "eight hundred forty-four million, ninety-five thousand, four hundred two".