321041240 has 32 divisors (see below), whose sum is σ = 777908880. Its totient is φ = 118538112.

The previous prime is 321041221. The next prime is 321041263. The reversal of 321041240 is 42140123.

321041240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308174 + ... + 309213.

Almost surely, 2^321041240 is an apocalyptic number.

It is an amenable number.

321041240 is an abundant number, since it is smaller than the sum of its proper divisors (456867640).

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

321041240 is a wasteful number, since it uses less digits than its factorization.

321041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617411 (or 617407 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 321041240 is about 17917.6237263762. The cubic root of 321041240 is about 684.7314485325.

Adding to 321041240 its reverse (42140123), we get a palindrome (363181363).

The spelling of 321041240 in words is "three hundred twenty-one million, forty-one thousand, two hundred forty".