320653146 has 48 divisors (see below), whose sum is σ = 707206752. Its totient is φ = 96851040.

The previous prime is 320653117. The next prime is 320653171. The reversal of 320653146 is 641356023.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321120 + ... + 322116.

It is an arithmetic number, because the mean of its divisors is an integer number (14733474).

Almost surely, 2^320653146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320653146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353603376).

320653146 is an abundant number, since it is smaller than the sum of its proper divisors (386553606).

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

320653146 is a wasteful number, since it uses less digits than its factorization.

320653146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 320653146 is about 17906.7904996959. The cubic root of 320653146 is about 684.4554223957.

The spelling of 320653146 in words is "three hundred twenty million, six hundred fifty-three thousand, one hundred forty-six".