128284022 has 8 divisors (see below), whose sum is σ = 192553536. Its totient is φ = 64099512.

The previous prime is 128284019. The next prime is 128284027. The reversal of 128284022 is 220482821.

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

It is a super-3 number, since 3×128284022³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128284027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17333 + ... + 23600.

It is an arithmetic number, because the mean of its divisors is an integer number (24069192).

Almost surely, 2^128284022 is an apocalyptic number.

128284022 is a deficient number, since it is larger than the sum of its proper divisors (64269514).

128284022 is a wasteful number, since it uses less digits than its factorization.

128284022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42502.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 128284022 is about 11326.2536612951. The cubic root of 128284022 is about 504.3409001093.

The spelling of 128284022 in words is "one hundred twenty-eight million, two hundred eighty-four thousand, twenty-two".