322421140 has 12 divisors (see below), whose sum is σ = 677084436. Its totient is φ = 128968448.

The previous prime is 322421137. The next prime is 322421221. The reversal of 322421140 is 41124223.

322421140 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218625796 + 103795344 = 14786^2 + 10188^2 .

322421140 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8060509 + ... + 8060548.

It is an arithmetic number, because the mean of its divisors is an integer number (56423703).

Almost surely, 2^322421140 is an apocalyptic number.

It is an amenable number.

322421140 is an abundant number, since it is smaller than the sum of its proper divisors (354663296).

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

322421140 is a wasteful number, since it uses less digits than its factorization.

322421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16121066 (or 16121064 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 322421140 is about 17956.0892178670. The cubic root of 322421140 is about 685.7110842691.

Adding to 322421140 its reverse (41124223), we get a palindrome (363545363).

The spelling of 322421140 in words is "three hundred twenty-two million, four hundred twenty-one thousand, one hundred forty".