330812109 has 12 divisors (see below), whose sum is σ = 478050300. Its totient is φ = 220444224.

The previous prime is 330812107. The next prime is 330812113. The reversal of 330812109 is 901218033.

It can be written as a sum of positive squares in 2 ways, for example, as 275726025 + 55086084 = 16605^2 + 7422^2 .

It is not a de Polignac number, because 330812109 - 2¹ = 330812107 is a prime.

It is a super-2 number, since 2×330812109² = 218873302922055762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330812101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17827 + ... + 31295.

It is an arithmetic number, because the mean of its divisors is an integer number (39837525).

Almost surely, 2^330812109 is an apocalyptic number.

It is an amenable number.

330812109 is a deficient number, since it is larger than the sum of its proper divisors (147238191).

330812109 is a wasteful number, since it uses less digits than its factorization.

330812109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16204 (or 16201 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 330812109 is about 18188.2409539790. The cubic root of 330812109 is about 691.6087290190.

The spelling of 330812109 in words is "three hundred thirty million, eight hundred twelve thousand, one hundred nine".