128280802 has 24 divisors (see below), whose sum is σ = 210368016. Its totient is φ = 58636656.

The previous prime is 128280797. The next prime is 128280811. The reversal of 128280802 is 208082821.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34393 + ... + 37939.

It is an arithmetic number, because the mean of its divisors is an integer number (8765334).

Almost surely, 2^128280802 is an apocalyptic number.

128280802 is a deficient number, since it is larger than the sum of its proper divisors (82087214).

128280802 is a wasteful number, since it uses less digits than its factorization.

128280802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3682 (or 3669 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 128280802 is about 11326.1115127832. Note that the first 3 decimals coincide. The cubic root of 128280802 is about 504.3366803287.

The spelling of 128280802 in words is "one hundred twenty-eight million, two hundred eighty thousand, eight hundred two".