128025860 has 12 divisors (see below), whose sum is σ = 268854348. Its totient is φ = 51210336.

The previous prime is 128025853. The next prime is 128025881. The reversal of 128025860 is 68520821.

It can be written as a sum of positive squares in 2 ways, for example, as 43349056 + 84676804 = 6584^2 + 9202^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3200627 + ... + 3200666.

It is an arithmetic number, because the mean of its divisors is an integer number (22404529).

Almost surely, 2^128025860 is an apocalyptic number.

128025860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128025860 is an abundant number, since it is smaller than the sum of its proper divisors (140828488).

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

128025860 is a wasteful number, since it uses less digits than its factorization.

128025860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401302 (or 6401300 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 128025860 is about 11314.8513026023. The cubic root of 128025860 is about 504.0023567959.

The spelling of 128025860 in words is "one hundred twenty-eight million, twenty-five thousand, eight hundred sixty".