320089836 has 48 divisors (see below), whose sum is σ = 822286080. Its totient is φ = 96102720.

The previous prime is 320089823. The next prime is 320089853. The reversal of 320089836 is 638980023.

It is a super-2 number, since 2×320089836² = 204915006221013792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320089794 and 320089803.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3265 + ... + 25511.

It is an arithmetic number, because the mean of its divisors is an integer number (17130960).

Almost surely, 2^320089836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320089836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411143040).

320089836 is an abundant number, since it is smaller than the sum of its proper divisors (502196244).

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

320089836 is a wasteful number, since it uses less digits than its factorization.

320089836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22374 (or 22372 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 320089836 is about 17891.0546363259. The cubic root of 320089836 is about 684.0543799315.

The spelling of 320089836 in words is "three hundred twenty million, eighty-nine thousand, eight hundred thirty-six".