128030390 has 8 divisors (see below), whose sum is σ = 230454720. Its totient is φ = 51212152.

The previous prime is 128030387. The next prime is 128030401. The reversal of 128030390 is 93030821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6401510 + ... + 6401529.

It is an arithmetic number, because the mean of its divisors is an integer number (28806840).

Almost surely, 2^128030390 is an apocalyptic number.

128030390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128030390 is a deficient number, since it is larger than the sum of its proper divisors (102424330).

128030390 is a wasteful number, since it uses less digits than its factorization.

128030390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12803046.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 128030390 is about 11315.0514802187. The cubic root of 128030390 is about 504.0083011776.

The spelling of 128030390 in words is "one hundred twenty-eight million, thirty thousand, three hundred ninety".