829985438 has 8 divisors (see below), whose sum is σ = 1245281688. Its totient is φ = 414891544.

The previous prime is 829985437. The next prime is 829985461. The reversal of 829985438 is 834589928.

829985438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829985437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39881 + ... + 57012.

It is an arithmetic number, because the mean of its divisors is an integer number (155660211).

Almost surely, 2^829985438 is an apocalyptic number.

829985438 is a deficient number, since it is larger than the sum of its proper divisors (415296250).

829985438 is a wasteful number, since it uses less digits than its factorization.

829985438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101178.

The product of its digits is 4976640, while the sum is 56.

The square root of 829985438 is about 28809.4678534679. The cubic root of 829985438 is about 939.7741414507.

The spelling of 829985438 in words is "eight hundred twenty-nine million, nine hundred eighty-five thousand, four hundred thirty-eight".