128336330 has 16 divisors (see below), whose sum is σ = 231197544. Its totient is φ = 51291840.

The previous prime is 128336321. The next prime is 128336359. The reversal of 128336330 is 33633821.

It can be written as a sum of positive squares in 4 ways, for example, as 70073641 + 58262689 = 8371^2 + 7633^2 .

It is a junction number, because it is equal to n+sod(n) for n = 128336293 and 128336302.

It is an unprimeable number.

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, 9164 + ... + 18456.

Almost surely, 2^128336330 is an apocalyptic number.

128336330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128336330 is a deficient number, since it is larger than the sum of its proper divisors (102861214).

128336330 is a wasteful number, since it uses less digits than its factorization.

128336330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 128336330 is about 11328.5625743075. The cubic root of 128336330 is about 504.4094393775.

The spelling of 128336330 in words is "one hundred twenty-eight million, three hundred thirty-six thousand, three hundred thirty".