321330652 has 12 divisors (see below), whose sum is σ = 564317656. Its totient is φ = 160097040.

The previous prime is 321330649. The next prime is 321330661. The reversal of 321330652 is 256033123.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140799 + ... + 143062.

Almost surely, 2^321330652 is an apocalyptic number.

It is an amenable number.

321330652 is a deficient number, since it is larger than the sum of its proper divisors (242987004).

321330652 is a wasteful number, since it uses less digits than its factorization.

321330652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284148 (or 284146 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 321330652 is about 17925.6980896143. The cubic root of 321330652 is about 684.9371437876.

Adding to 321330652 its reverse (256033123), we get a palindrome (577363775).

The spelling of 321330652 in words is "three hundred twenty-one million, three hundred thirty thousand, six hundred fifty-two".