330665490 has 40 divisors (see below), whose sum is σ = 889124940. Its totient is φ = 88177248.

The previous prime is 330665479. The next prime is 330665501. The reversal of 330665490 is 94566033.

It is an interprime number because it is at equal distance from previous prime (330665479) and next prime (330665501).

It can be written as a sum of positive squares in 2 ways, for example, as 330185241 + 480249 = 18171^2 + 693^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 203305 + ... + 204924.

Almost surely, 2^330665490 is an apocalyptic number.

330665490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

330665490 is an abundant number, since it is smaller than the sum of its proper divisors (558459450).

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

330665490 is a wasteful number, since it uses less digits than its factorization.

330665490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408248 (or 408239 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 330665490 is about 18184.2099085993. The cubic root of 330665490 is about 691.5065381156.

The spelling of 330665490 in words is "three hundred thirty million, six hundred sixty-five thousand, four hundred ninety".