320280030136 has 64 divisors (see below), whose sum is σ = 663981753600. Its totient is φ = 143619590400.

The previous prime is 320280030131. The next prime is 320280030139. The reversal of 320280030136 is 631030082023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320280030131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3423421 + ... + 3515731.

It is an arithmetic number, because the mean of its divisors is an integer number (10374714900).

Almost surely, 2^320280030136 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 320280030136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331990876800).

320280030136 is an abundant number, since it is smaller than the sum of its proper divisors (343701723464).

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

320280030136 is a wasteful number, since it uses less digits than its factorization.

320280030136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92860 (or 92856 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 320280030136 in words is "three hundred twenty billion, two hundred eighty million, thirty thousand, one hundred thirty-six".