128488896 has 56 divisors (see below), whose sum is σ = 377738640. Its totient is φ = 42829056.

The previous prime is 128488891. The next prime is 128488903. The reversal of 128488896 is 698884821.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128488891) 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, 35451 + ... + 38906.

Almost surely, 2^128488896 is an apocalyptic number.

128488896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128488896 is an abundant number, since it is smaller than the sum of its proper divisors (249249744).

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

128488896 is an equidigital number, since it uses as much as digits as its factorization.

128488896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74378 (or 74362 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The square root of 128488896 is about 11335.2942617296. The cubic root of 128488896 is about 504.6092405710.

The spelling of 128488896 in words is "one hundred twenty-eight million, four hundred eighty-eight thousand, eight hundred ninety-six".