321347460 has 192 divisors, whose sum is σ = 1069350912. Its totient is φ = 70585344.

The previous prime is 321347459. The next prime is 321347461. The reversal of 321347460 is 64743123.

It is an interprime number because it is at equal distance from previous prime (321347459) and next prime (321347461).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (321347461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1440909 + ... + 1441131.

It is an arithmetic number, because the mean of its divisors is an integer number (5569536).

Almost surely, 2^321347460 is an apocalyptic number.

321347460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321347460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534675456).

321347460 is an abundant number, since it is smaller than the sum of its proper divisors (748003452).

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

321347460 is a wasteful number, since it uses less digits than its factorization.

321347460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 321347460 is about 17926.1669076242. The cubic root of 321347460 is about 684.9490860270.

The spelling of 321347460 in words is "three hundred twenty-one million, three hundred forty-seven thousand, four hundred sixty".