330138288 has 40 divisors (see below), whose sum is σ = 947620400. Its totient is φ = 110045952.

The previous prime is 330138287. The next prime is 330138307. The reversal of 330138288 is 882831033.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (330138287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381673 + ... + 382536.

It is an arithmetic number, because the mean of its divisors is an integer number (23690510).

Almost surely, 2^330138288 is an apocalyptic number.

It is an amenable number.

330138288 is an abundant number, since it is smaller than the sum of its proper divisors (617482112).

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

330138288 is a wasteful number, since it uses less digits than its factorization.

330138288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764226 (or 764214 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 330138288 is about 18169.7079778405. The cubic root of 330138288 is about 691.1388376629.

The spelling of 330138288 in words is "three hundred thirty million, one hundred thirty-eight thousand, two hundred eighty-eight".