820337842 has 8 divisors (see below), whose sum is σ = 1234053936. Its totient is φ = 408986532.

The previous prime is 820337809. The next prime is 820337879. The reversal of 820337842 is 248733028.

It is a happy number.

820337842 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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590328 + ... + 591715.

It is an arithmetic number, because the mean of its divisors is an integer number (154256742).

Almost surely, 2^820337842 is an apocalyptic number.

820337842 is a deficient number, since it is larger than the sum of its proper divisors (413716094).

820337842 is a wasteful number, since it uses less digits than its factorization.

820337842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182392.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 820337842 is about 28641.5404962792. The cubic root of 820337842 is about 936.1186880747.

The spelling of 820337842 in words is "eight hundred twenty million, three hundred thirty-seven thousand, eight hundred forty-two".