128876630 has 16 divisors (see below), whose sum is σ = 233649360. Its totient is φ = 51179232.

The previous prime is 128876617. The next prime is 128876663. The reversal of 128876630 is 36678821.

It is a happy number.

It is a congruent number.

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, 44969 + ... + 47748.

It is an arithmetic number, because the mean of its divisors is an integer number (14603085).

Almost surely, 2^128876630 is an apocalyptic number.

128876630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128876630 is a deficient number, since it is larger than the sum of its proper divisors (104772730).

128876630 is a wasteful number, since it uses less digits than its factorization.

128876630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92863.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 128876630 is about 11352.3843310557. The cubic root of 128876630 is about 505.1163082105.

The spelling of 128876630 in words is "one hundred twenty-eight million, eight hundred seventy-six thousand, six hundred thirty".