128241788 has 12 divisors (see below), whose sum is σ = 224502432. Its totient is φ = 64098240.

The previous prime is 128241787. The next prime is 128241797. The reversal of 128241788 is 887142821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128241787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19181 + ... + 24987.

It is an arithmetic number, because the mean of its divisors is an integer number (18708536).

Almost surely, 2^128241788 is an apocalyptic number.

It is an amenable number.

128241788 is a deficient number, since it is larger than the sum of its proper divisors (96260644).

128241788 is a wasteful number, since it uses less digits than its factorization.

128241788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 11330 counting only the distinct ones).

The product of its digits is 57344, while the sum is 41.

The square root of 128241788 is about 11324.3890784448. The cubic root of 128241788 is about 504.2855472260.

The spelling of 128241788 in words is "one hundred twenty-eight million, two hundred forty-one thousand, seven hundred eighty-eight".