128210630 has 16 divisors (see below), whose sum is σ = 233941824. Its totient is φ = 50581440.

The previous prime is 128210581. The next prime is 128210633. The reversal of 128210630 is 36012821.

It is a junction number, because it is equal to n+sod(n) for n = 128210596 and 128210605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128210633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87086 + ... + 88545.

It is an arithmetic number, because the mean of its divisors is an integer number (14621364).

Almost surely, 2^128210630 is an apocalyptic number.

128210630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128210630 is a deficient number, since it is larger than the sum of its proper divisors (105731194).

128210630 is a wasteful number, since it uses less digits than its factorization.

128210630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175711.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 128210630 is about 11323.0132915227. The cubic root of 128210630 is about 504.2447030206.

The spelling of 128210630 in words is "one hundred twenty-eight million, two hundred ten thousand, six hundred thirty".