128952630 has 24 divisors (see below), whose sum is σ = 335277072. Its totient is φ = 34387344.

The previous prime is 128952623. The next prime is 128952661. The reversal of 128952630 is 36259821.

128952630 is a `hidden beast` number, since 12 + 8 + 9 + 5 + 2 + 630 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716314 + ... + 716493.

It is an arithmetic number, because the mean of its divisors is an integer number (13969878).

Almost surely, 2^128952630 is an apocalyptic number.

128952630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128952630 is an abundant number, since it is smaller than the sum of its proper divisors (206324442).

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

128952630 is a wasteful number, since it uses less digits than its factorization.

128952630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432820 (or 1432817 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 128952630 is about 11355.7311521540. The cubic root of 128952630 is about 505.2155796242.

The spelling of 128952630 in words is "one hundred twenty-eight million, nine hundred fifty-two thousand, six hundred thirty".