838644152 has 32 divisors (see below), whose sum is σ = 1606651200. Its totient is φ = 410302464.

The previous prime is 838644151. The next prime is 838644223. The reversal of 838644152 is 251446838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838644151) 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 7 ways as a sum of consecutive naturals, for example, 62993 + ... + 75135.

It is an arithmetic number, because the mean of its divisors is an integer number (50207850).

Almost surely, 2^838644152 is an apocalyptic number.

It is an amenable number.

838644152 is a deficient number, since it is larger than the sum of its proper divisors (768007048).

838644152 is a wasteful number, since it uses less digits than its factorization.

838644152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12335 (or 12331 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 838644152 is about 28959.3534458213. The cubic root of 838644152 is about 943.0308658598.

The spelling of 838644152 in words is "eight hundred thirty-eight million, six hundred forty-four thousand, one hundred fifty-two".