844490 has 8 divisors (see below), whose sum is σ = 1520100. Its totient is φ = 337792.

The previous prime is 844489. The next prime is 844499. The reversal of 844490 is 94448.

It is a happy number.

844490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 758641 + 85849 = 871^2 + 293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (844499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42215 + ... + 42234.

2⁸⁴⁴⁴⁹⁰ is an apocalyptic number.

844490 is a deficient number, since it is larger than the sum of its proper divisors (675610).

844490 is a wasteful number, since it uses less digits than its factorization.

844490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84456.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 844490 is about 918.9613702436. The cubic root of 844490 is about 94.5216956056.

The spelling of 844490 in words is "eight hundred forty-four thousand, four hundred ninety".