330530640 has 80 divisors (see below), whose sum is σ = 1117803456. Its totient is φ = 80128000.

The previous prime is 330530633. The next prime is 330530647. The reversal of 330530640 is 46035033.

It is an interprime number because it is at equal distance from previous prime (330530633) and next prime (330530647).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 330530640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330530647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59961 + ... + 65240.

Almost surely, 2^330530640 is an apocalyptic number.

330530640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

330530640 is an abundant number, since it is smaller than the sum of its proper divisors (787272816).

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

330530640 is a wasteful number, since it uses less digits than its factorization.

330530640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125228 (or 125222 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 330530640 is about 18180.5016432441. The cubic root of 330530640 is about 691.4125233297.

Adding to 330530640 its reverse (46035033), we get a palindrome (376565673).

The spelling of 330530640 in words is "three hundred thirty million, five hundred thirty thousand, six hundred forty".