844064238 has 16 divisors (see below), whose sum is σ = 1691133696. Its totient is φ = 280853880.

The previous prime is 844064231. The next prime is 844064251. The reversal of 844064238 is 832460448.

It is a junction number, because it is equal to n+sod(n) for n = 844064196 and 844064205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844064231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121558 + ... + 128313.

It is an arithmetic number, because the mean of its divisors is an integer number (105695856).

Almost surely, 2^844064238 is an apocalyptic number.

844064238 is an abundant number, since it is smaller than the sum of its proper divisors (847069458).

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

844064238 is a wasteful number, since it uses less digits than its factorization.

844064238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250439.

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 844064238 is about 29052.7836532061. The cubic root of 844064238 is about 945.0580810303.

The spelling of 844064238 in words is "eight hundred forty-four million, sixty-four thousand, two hundred thirty-eight".