128414436 has 24 divisors (see below), whose sum is σ = 309966720. Its totient is φ = 41328672.

The previous prime is 128414393. The next prime is 128414441. The reversal of 128414436 is 634414821.

It is a junction number, because it is equal to n+sod(n) for n = 128414397 and 128414406.

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, 184156 + ... + 184851.

It is an arithmetic number, because the mean of its divisors is an integer number (12915280).

Almost surely, 2^128414436 is an apocalyptic number.

It is an amenable number.

128414436 is an abundant number, since it is smaller than the sum of its proper divisors (181552284).

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

128414436 is a wasteful number, since it uses less digits than its factorization.

128414436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369043 (or 369041 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 128414436 is about 11332.0093540378. The cubic root of 128414436 is about 504.5117471546.

The spelling of 128414436 in words is "one hundred twenty-eight million, four hundred fourteen thousand, four hundred thirty-six".