128066430 has 16 divisors (see below), whose sum is σ = 307359504. Its totient is φ = 34151040.

The previous prime is 128066417. The next prime is 128066443. The reversal of 128066430 is 34660821.

It is an interprime number because it is at equal distance from previous prime (128066417) and next prime (128066443).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 4268881 = 128066430 / (1 + 2 + 8 + 0 + 6 + 6 + 4 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134411 + ... + 2134470.

It is an arithmetic number, because the mean of its divisors is an integer number (19209969).

Almost surely, 2^128066430 is an apocalyptic number.

128066430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128066430 is an abundant number, since it is smaller than the sum of its proper divisors (179293074).

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

128066430 is a wasteful number, since it uses less digits than its factorization.

128066430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268891.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 128066430 is about 11316.6439371397. The cubic root of 128066430 is about 504.0555887918.

The spelling of 128066430 in words is "one hundred twenty-eight million, sixty-six thousand, four hundred thirty".