321333380 has 24 divisors (see below), whose sum is σ = 675138240. Its totient is φ = 128468960.

The previous prime is 321333379. The next prime is 321333401. The reversal of 321333380 is 83333123.

It is a super-2 number, since 2×321333380² = 206510282204448800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70985 + ... + 75375.

It is an arithmetic number, because the mean of its divisors is an integer number (28130760).

Almost surely, 2^321333380 is an apocalyptic number.

It is an amenable number.

321333380 is an abundant number, since it is smaller than the sum of its proper divisors (353804860).

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

321333380 is a wasteful number, since it uses less digits than its factorization.

321333380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059 (or 8057 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 321333380 is about 17925.7741813290. The cubic root of 321333380 is about 684.9390820851.

The spelling of 321333380 in words is "three hundred twenty-one million, three hundred thirty-three thousand, three hundred eighty".