330420138 has 16 divisors (see below), whose sum is σ = 678701280. Its totient is φ = 107163216.

The previous prime is 330420137. The next prime is 330420149. The reversal of 330420138 is 831024033.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (330420131) 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 7 ways as a sum of consecutive naturals, for example, 743968 + ... + 744411.

It is an arithmetic number, because the mean of its divisors is an integer number (42418830).

Almost surely, 2^330420138 is an apocalyptic number.

330420138 is an abundant number, since it is smaller than the sum of its proper divisors (348281142).

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

330420138 is a wasteful number, since it uses less digits than its factorization.

330420138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488421.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 330420138 is about 18177.4623641475. The cubic root of 330420138 is about 691.3354644299.

The spelling of 330420138 in words is "three hundred thirty million, four hundred twenty thousand, one hundred thirty-eight".