128488435 has 8 divisors (see below), whose sum is σ = 154787616. Its totient is φ = 102389760.

The previous prime is 128488433. The next prime is 128488439. The reversal of 128488435 is 534884821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128488435 - 2¹ = 128488433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128488391 and 128488400.

It is not an unprimeable number, because it can be changed into a prime (128488433) 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, 48711 + ... + 51280.

It is an arithmetic number, because the mean of its divisors is an integer number (19348452).

Almost surely, 2^128488435 is an apocalyptic number.

128488435 is a deficient number, since it is larger than the sum of its proper divisors (26299181).

128488435 is an equidigital number, since it uses as much as digits as its factorization.

128488435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100253.

The product of its digits is 245760, while the sum is 43.

The square root of 128488435 is about 11335.2739269944. The cubic root of 128488435 is about 504.6086370814.

The spelling of 128488435 in words is "one hundred twenty-eight million, four hundred eighty-eight thousand, four hundred thirty-five".