321460540 has 12 divisors (see below), whose sum is σ = 675067176. Its totient is φ = 128584208.

The previous prime is 321460519. The next prime is 321460583. The reversal of 321460540 is 45064123.

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 3 ways as a sum of consecutive naturals, for example, 8036494 + ... + 8036533.

It is an arithmetic number, because the mean of its divisors is an integer number (56255598).

Almost surely, 2^321460540 is an apocalyptic number.

It is an amenable number.

321460540 is an abundant number, since it is smaller than the sum of its proper divisors (353606636).

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

321460540 is a wasteful number, since it uses less digits than its factorization.

321460540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16073036 (or 16073034 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 321460540 is about 17929.3206787095. The cubic root of 321460540 is about 685.0294195900.

The spelling of 321460540 in words is "three hundred twenty-one million, four hundred sixty thousand, five hundred forty".