321404082 has 16 divisors (see below), whose sum is σ = 643256640. Its totient is φ = 107059952.

The previous prime is 321404077. The next prime is 321404087. The reversal of 321404082 is 280404123.

It is an interprime number because it is at equal distance from previous prime (321404077) and next prime (321404087).

It is not an unprimeable number, because it can be changed into a prime (321404087) by changing a digit.

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, 8982 + ... + 26897.

It is an arithmetic number, because the mean of its divisors is an integer number (40203540).

Almost surely, 2^321404082 is an apocalyptic number.

321404082 is an abundant number, since it is smaller than the sum of its proper divisors (321852558).

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

321404082 is a wasteful number, since it uses less digits than its factorization.

321404082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37377.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 321404082 is about 17927.7461494746. The cubic root of 321404082 is about 684.9893134177.

The spelling of 321404082 in words is "three hundred twenty-one million, four hundred four thousand, eighty-two".