838428230442 has 64 divisors (see below), whose sum is σ = 1842651224064. Its totient is φ = 252218514240.

The previous prime is 838428230411. The next prime is 838428230443. The reversal of 838428230442 is 244032824838.

It is a junction number, because it is equal to n+sod(n) for n = 838428230391 and 838428230400.

It is not an unprimeable number, because it can be changed into a prime (838428230443) 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 31 ways as a sum of consecutive naturals, for example, 8470803 + ... + 8569209.

It is an arithmetic number, because the mean of its divisors is an integer number (28791425376).

Almost surely, 2^838428230442 is an apocalyptic number.

838428230442 is an abundant number, since it is smaller than the sum of its proper divisors (1004222993622).

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

838428230442 is a wasteful number, since it uses less digits than its factorization.

838428230442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99363.

The product of its (nonzero) digits is 2359296, while the sum is 48.

The spelling of 838428230442 in words is "eight hundred thirty-eight billion, four hundred twenty-eight million, two hundred thirty thousand, four hundred forty-two".