321214040 has 32 divisors (see below), whose sum is σ = 825979680. Its totient is φ = 110130432.

The previous prime is 321214009. The next prime is 321214093. The reversal of 321214040 is 40412123.

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, 573317 + ... + 573876.

It is an arithmetic number, because the mean of its divisors is an integer number (25811865).

Almost surely, 2^321214040 is an apocalyptic number.

It is an amenable number.

321214040 is an abundant number, since it is smaller than the sum of its proper divisors (504765640).

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

321214040 is a wasteful number, since it uses less digits than its factorization.

321214040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147211 (or 1147207 counting only the distinct ones).

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

The square root of 321214040 is about 17922.4451456825. The cubic root of 321214040 is about 684.8542784134.

Adding to 321214040 its reverse (40412123), we get a palindrome (361626163).

The spelling of 321214040 in words is "three hundred twenty-one million, two hundred fourteen thousand, forty".