396135836238 has 32 divisors (see below), whose sum is σ = 867802649760. Its totient is φ = 119992463360.

The previous prime is 396135836237. The next prime is 396135836249. The reversal of 396135836238 is 832638531693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396135836231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66957123 + ... + 66963038.

It is an arithmetic number, because the mean of its divisors is an integer number (27118832805).

Almost surely, 2^396135836238 is an apocalyptic number.

396135836238 is an abundant number, since it is smaller than the sum of its proper divisors (471666813522).

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

396135836238 is a wasteful number, since it uses less digits than its factorization.

396135836238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133920212.

The product of its digits is 16796160, while the sum is 57.

The spelling of 396135836238 in words is "three hundred ninety-six billion, one hundred thirty-five million, eight hundred thirty-six thousand, two hundred thirty-eight".