838628012 has 12 divisors (see below), whose sum is σ = 1489503960. Its totient is φ = 413055456.

The previous prime is 838627973. The next prime is 838628029. The reversal of 838628012 is 210826838.

It is a super-3 number, since 3×838628012³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1564337 + ... + 1564872.

It is an arithmetic number, because the mean of its divisors is an integer number (124125330).

Almost surely, 2^838628012 is an apocalyptic number.

It is an amenable number.

838628012 is a deficient number, since it is larger than the sum of its proper divisors (650875948).

838628012 is a wasteful number, since it uses less digits than its factorization.

838628012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129280 (or 3129278 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 838628012 is about 28959.0747780381. The cubic root of 838628012 is about 943.0248161680.

The spelling of 838628012 in words is "eight hundred thirty-eight million, six hundred twenty-eight thousand, twelve".