321314620 has 96 divisors (see below), whose sum is σ = 794598336. Its totient is φ = 107827200.

The previous prime is 321314611. The next prime is 321314627. The reversal of 321314620 is 26413123.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 321314591 and 321314600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321314627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197410 + ... + 199030.

It is an arithmetic number, because the mean of its divisors is an integer number (8277066).

Almost surely, 2^321314620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321314620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397299168).

321314620 is an abundant number, since it is smaller than the sum of its proper divisors (473283716).

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

321314620 is a wasteful number, since it uses less digits than its factorization.

321314620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 321314620 is about 17925.2509047991. The cubic root of 321314620 is about 684.9257525152.

Adding to 321314620 its reverse (26413123), we get a palindrome (347727743).

The spelling of 321314620 in words is "three hundred twenty-one million, three hundred fourteen thousand, six hundred twenty".