128302860 has 48 divisors (see below), whose sum is σ = 410570496. Its totient is φ = 29326272.

The previous prime is 128302849. The next prime is 128302871. The reversal of 128302860 is 68203821.

It is an interprime number because it is at equal distance from previous prime (128302849) and next prime (128302871).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152322 + ... + 153161.

It is an arithmetic number, because the mean of its divisors is an integer number (8553552).

Almost surely, 2^128302860 is an apocalyptic number.

128302860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128302860 is an abundant number, since it is smaller than the sum of its proper divisors (282267636).

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

128302860 is a wasteful number, since it uses less digits than its factorization.

128302860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305502 (or 305500 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 128302860 is about 11327.0852384892. The cubic root of 128302860 is about 504.3655857215.

The spelling of 128302860 in words is "one hundred twenty-eight million, three hundred two thousand, eight hundred sixty".