330649 has 4 divisors (see below), whose sum is σ = 360720. Its totient is φ = 300580.

The previous prime is 330643. The next prime is 330653. The reversal of 330649 is 946033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 330649 - 2³ = 330641 is a prime.

It is a super-2 number, since 2×330649² = 218657522402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15019 + ... + 15040.

It is an arithmetic number, because the mean of its divisors is an integer number (90180).

2³³⁰⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

330649 is a deficient number, since it is larger than the sum of its proper divisors (30071).

330649 is a wasteful number, since it uses less digits than its factorization.

330649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30070.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 330649 is about 575.0208691865. The cubic root of 330649 is about 69.1495042982.

It can be divided in two parts, 330 and 649, that added together give a palindrome (979).

The spelling of 330649 in words is "three hundred thirty thousand, six hundred forty-nine".