128053436 has 48 divisors (see below), whose sum is σ = 266391552. Its totient is φ = 52704000.

The previous prime is 128053403. The next prime is 128053447. The reversal of 128053436 is 634350821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130580 + ... + 131556.

It is an arithmetic number, because the mean of its divisors is an integer number (5549824).

Almost surely, 2^128053436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128053436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133195776).

128053436 is an abundant number, since it is smaller than the sum of its proper divisors (138338116).

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

128053436 is a wasteful number, since it uses less digits than its factorization.

128053436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 128053436 is about 11316.0698124393. The cubic root of 128053436 is about 504.0385405566.

The spelling of 128053436 in words is "one hundred twenty-eight million, fifty-three thousand, four hundred thirty-six".