838349245 has 16 divisors (see below), whose sum is σ = 1015383600. Its totient is φ = 664460800.

The previous prime is 838349243. The next prime is 838349249. The reversal of 838349245 is 542943838.

It can be written as a sum of positive squares in 8 ways, for example, as 279357796 + 558991449 = 16714^2 + 23643^2 .

It is not a de Polignac number, because 838349245 - 2¹ = 838349243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 838349195 and 838349204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838349243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342225 + ... + 344665.

It is an arithmetic number, because the mean of its divisors is an integer number (63461475).

Almost surely, 2^838349245 is an apocalyptic number.

It is an amenable number.

838349245 is a deficient number, since it is larger than the sum of its proper divisors (177034355).

838349245 is a wasteful number, since it uses less digits than its factorization.

838349245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056.

The product of its digits is 829440, while the sum is 46.

The square root of 838349245 is about 28954.2612580601. The cubic root of 838349245 is about 942.9203147964.

The spelling of 838349245 in words is "eight hundred thirty-eight million, three hundred forty-nine thousand, two hundred forty-five".