320040270 has 48 divisors (see below), whose sum is σ = 907753392. Its totient is φ = 77585280.

The previous prime is 320040251. The next prime is 320040277. The reversal of 320040270 is 72040023.

It is a happy number.

320040270 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320040277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160647 + ... + 162626.

It is an arithmetic number, because the mean of its divisors is an integer number (18911529).

Almost surely, 2^320040270 is an apocalyptic number.

320040270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320040270 is an abundant number, since it is smaller than the sum of its proper divisors (587713122).

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

320040270 is a wasteful number, since it uses less digits than its factorization.

320040270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323297 (or 323294 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 320040270 is about 17889.6693653069. The cubic root of 320040270 is about 684.0190694386.

Adding to 320040270 its reverse (72040023), we get a palindrome (392080293).

The spelling of 320040270 in words is "three hundred twenty million, forty thousand, two hundred seventy".