844064 has 24 divisors (see below), whose sum is σ = 1790460. Its totient is φ = 389376.

The previous prime is 844061. The next prime is 844069. The reversal of 844064 is 460448.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 19600 = 908^2 + 140^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (844061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599 + ... + 1430.

2⁸⁴⁴⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

844064 is an abundant number, since it is smaller than the sum of its proper divisors (946396).

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

844064 is a wasteful number, since it uses less digits than its factorization.

844064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 844064 is about 918.7295575957. The cubic root of 844064 is about 94.5057992205.

The spelling of 844064 in words is "eight hundred forty-four thousand, sixty-four".