844825245 has 32 divisors (see below), whose sum is σ = 1525461120. Its totient is φ = 395485440.

The previous prime is 844825243. The next prime is 844825249. The reversal of 844825245 is 542528448.

844825245 = 3788² + 3789² + ... + 3845².

It is not a de Polignac number, because 844825245 - 2¹ = 844825243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 844825197 and 844825206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844825243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83494 + ... + 93063.

It is an arithmetic number, because the mean of its divisors is an integer number (47670660).

Almost surely, 2^844825245 is an apocalyptic number.

It is an amenable number.

844825245 is a deficient number, since it is larger than the sum of its proper divisors (680635875).

844825245 is a wasteful number, since it uses less digits than its factorization.

844825245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176605.

The product of its digits is 409600, while the sum is 42.

The square root of 844825245 is about 29065.8776746893. The cubic root of 844825245 is about 945.3420166792.

The spelling of 844825245 in words is "eight hundred forty-four million, eight hundred twenty-five thousand, two hundred forty-five".