321402 has 32 divisors (see below), whose sum is σ = 715392. Its totient is φ = 95744.

The previous prime is 321397. The next prime is 321403. The reversal of 321402 is 204123.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321402.

It is not an unprimeable number, because it can be changed into a prime (321403) by changing a digit.

321402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2278 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (22356).

2³²¹⁴⁰² is an apocalyptic number.

321402 is an abundant number, since it is smaller than the sum of its proper divisors (393990).

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

321402 is a wasteful number, since it uses less digits than its factorization.

321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 321402 is about 566.9232752322. The cubic root of 321402 is about 68.4987834334.

Adding to 321402 its reverse (204123), we get a palindrome (525525).

The spelling of 321402 in words is "three hundred twenty-one thousand, four hundred two", and thus it is an iban number.