321640962 has 16 divisors (see below), whose sum is σ = 648348672. Its totient is φ = 106369200.

The previous prime is 321640951. The next prime is 321640967. The reversal of 321640962 is 269046123.

It is not an unprimeable number, because it can be changed into a prime (321640967) 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, 210289 + ... + 211812.

It is an arithmetic number, because the mean of its divisors is an integer number (40521792).

Almost surely, 2^321640962 is an apocalyptic number.

321640962 is an abundant number, since it is smaller than the sum of its proper divisors (326707710).

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

321640962 is a wasteful number, since it uses less digits than its factorization.

321640962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422233.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 321640962 is about 17934.3514518925. The cubic root of 321640962 is about 685.1575548218.

The spelling of 321640962 in words is "three hundred twenty-one million, six hundred forty thousand, nine hundred sixty-two".