128238832 has 10 divisors (see below), whose sum is σ = 248462768. Its totient is φ = 64119408.

The previous prime is 128238829. The next prime is 128238893. The reversal of 128238832 is 238832821.

It is a junction number, because it is equal to n+sod(n) for n = 128238791 and 128238800.

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 as a sum of consecutive naturals, namely, 4007448 + ... + 4007479.

Almost surely, 2^128238832 is an apocalyptic number.

It is an amenable number.

128238832 is a deficient number, since it is larger than the sum of its proper divisors (120223936).

128238832 is an equidigital number, since it uses as much as digits as its factorization.

128238832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014935 (or 8014929 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 128238832 is about 11324.2585629259. The cubic root of 128238832 is about 504.2816725671.

The spelling of 128238832 in words is "one hundred twenty-eight million, two hundred thirty-eight thousand, eight hundred thirty-two".