128366630 has 16 divisors (see below), whose sum is σ = 264068640. Its totient is φ = 44011392.

The previous prime is 128366627. The next prime is 128366681. The reversal of 128366630 is 36663821.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 916835 + ... + 916974.

It is an arithmetic number, because the mean of its divisors is an integer number (16504290).

Almost surely, 2^128366630 is an apocalyptic number.

128366630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128366630 is an abundant number, since it is smaller than the sum of its proper divisors (135702010).

128366630 is a wasteful number, since it uses less digits than its factorization.

128366630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833823.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 128366630 is about 11329.8998230346. The cubic root of 128366630 is about 504.4491330048.

The spelling of 128366630 in words is "one hundred twenty-eight million, three hundred sixty-six thousand, six hundred thirty".