128098478 has 16 divisors (see below), whose sum is σ = 193752000. Its totient is φ = 63517152.

The previous prime is 128098469. The next prime is 128098483. The reversal of 128098478 is 874890821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177803 + ... + 178521.

It is an arithmetic number, because the mean of its divisors is an integer number (12109500).

Almost surely, 2^128098478 is an apocalyptic number.

128098478 is a deficient number, since it is larger than the sum of its proper divisors (65653522).

128098478 is a wasteful number, since it uses less digits than its factorization.

128098478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 128098478 is about 11318.0598160639. The cubic root of 128098478 is about 504.0976311032.

The spelling of 128098478 in words is "one hundred twenty-eight million, ninety-eight thousand, four hundred seventy-eight".