128286344 has 16 divisors (see below), whose sum is σ = 240659100. Its totient is φ = 64110592.

The previous prime is 128286317. The next prime is 128286371. The reversal of 128286344 is 443682821.

It is an interprime number because it is at equal distance from previous prime (128286317) and next prime (128286371).

It can be written as a sum of positive squares in 2 ways, for example, as 117462244 + 10824100 = 10838^2 + 3290^2 .

It is a super-3 number, since 3×128286344³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128286298 and 128286307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24224 + ... + 29040.

Almost surely, 2^128286344 is an apocalyptic number.

It is an amenable number.

128286344 is a deficient number, since it is larger than the sum of its proper divisors (112372756).

128286344 is a wasteful number, since it uses less digits than its factorization.

128286344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152 (or 8148 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 128286344 is about 11326.3561660403. The cubic root of 128286344 is about 504.3439430253.

The spelling of 128286344 in words is "one hundred twenty-eight million, two hundred eighty-six thousand, three hundred forty-four".