330621481 has 8 divisors (see below), whose sum is σ = 345185280. Its totient is φ = 316073472.

The previous prime is 330621469. The next prime is 330621517. The reversal of 330621481 is 184126033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 330621481 - 2⁷ = 330621353 is a prime.

It is a super-2 number, since 2×330621481² = 218621127397266722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330621461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63721 + ... + 68713.

It is an arithmetic number, because the mean of its divisors is an integer number (43148160).

Almost surely, 2^330621481 is an apocalyptic number.

It is an amenable number.

330621481 is a deficient number, since it is larger than the sum of its proper divisors (14563799).

330621481 is a wasteful number, since it uses less digits than its factorization.

330621481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 330621481 is about 18182.9997800143. Note that the first 3 decimals coincide. The cubic root of 330621481 is about 691.4758587106.

It can be divided in two parts, 33062 and 1481, that added together give a palindrome (34543).

The spelling of 330621481 in words is "three hundred thirty million, six hundred twenty-one thousand, four hundred eighty-one".