128455342 has 8 divisors (see below), whose sum is σ = 197890776. Its totient is φ = 62491752.

The previous prime is 128455339. The next prime is 128455363. The reversal of 128455342 is 243554821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 128455298 and 128455307.

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 3 ways as a sum of consecutive naturals, for example, 867868 + ... + 868015.

It is an arithmetic number, because the mean of its divisors is an integer number (24736347).

Almost surely, 2^128455342 is an apocalyptic number.

128455342 is a deficient number, since it is larger than the sum of its proper divisors (69435434).

128455342 is a wasteful number, since it uses less digits than its factorization.

128455342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735922.

The product of its digits is 38400, while the sum is 34.

The square root of 128455342 is about 11333.8140976460. The cubic root of 128455342 is about 504.5653116582.

The spelling of 128455342 in words is "one hundred twenty-eight million, four hundred fifty-five thousand, three hundred forty-two".