128433682 has 16 divisors (see below), whose sum is σ = 214163712. Its totient is φ = 57364560.

The previous prime is 128433667. The next prime is 128433709. The reversal of 128433682 is 286334821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78868 + ... + 80479.

It is an arithmetic number, because the mean of its divisors is an integer number (13385232).

Almost surely, 2^128433682 is an apocalyptic number.

128433682 is a deficient number, since it is larger than the sum of its proper divisors (85730030).

128433682 is a wasteful number, since it uses less digits than its factorization.

128433682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159393.

The product of its digits is 55296, while the sum is 37.

The square root of 128433682 is about 11332.8585096612. The cubic root of 128433682 is about 504.5369503128.

The spelling of 128433682 in words is "one hundred twenty-eight million, four hundred thirty-three thousand, six hundred eighty-two".