438814832346 has 80 divisors (see below), whose sum is σ = 1072795505760. Its totient is φ = 132957205920.

The previous prime is 438814832341. The next prime is 438814832389. The reversal of 438814832346 is 643238418834.

438814832346 is a `hidden beast` number, since 43 + 8 + 81 + 483 + 2 + 3 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 438814832292 and 438814832301.

It is not an unprimeable number, because it can be changed into a prime (438814832341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26131765 + ... + 26148551.

It is an arithmetic number, because the mean of its divisors is an integer number (13409943822).

Almost surely, 2^438814832346 is an apocalyptic number.

438814832346 is an abundant number, since it is smaller than the sum of its proper divisors (633980673414).

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

438814832346 is a wasteful number, since it uses less digits than its factorization.

438814832346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31481 (or 31472 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 54.

The spelling of 438814832346 in words is "four hundred thirty-eight billion, eight hundred fourteen million, eight hundred thirty-two thousand, three hundred forty-six".