128444682 has 16 divisors (see below), whose sum is σ = 257048640. Its totient is φ = 42788352.

The previous prime is 128444671. The next prime is 128444689. The reversal of 128444682 is 286444821.

It is a super-2 number, since 2×128444682² = 32996072668162248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128444682.

It is not an unprimeable number, because it can be changed into a prime (128444689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5578 + ... + 16970.

It is an arithmetic number, because the mean of its divisors is an integer number (16065540).

Almost surely, 2^128444682 is an apocalyptic number.

128444682 is an abundant number, since it is smaller than the sum of its proper divisors (128603958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128444682 is a wasteful number, since it uses less digits than its factorization.

128444682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13277.

The product of its digits is 98304, while the sum is 39.

The square root of 128444682 is about 11333.3438137206. The cubic root of 128444682 is about 504.5513539799.

The spelling of 128444682 in words is "one hundred twenty-eight million, four hundred forty-four thousand, six hundred eighty-two".