128867248 has 20 divisors (see below), whose sum is σ = 257735488. Its totient is φ = 62354880.

The previous prime is 128867243. The next prime is 128867261. The reversal of 128867248 is 842768821.

It is a happy number.

128867248 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 128867198 and 128867207.

It is not an unprimeable number, because it can be changed into a prime (128867243) 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, 129411 + ... + 130402.

Almost surely, 2^128867248 is an apocalyptic number.

It is an amenable number.

128867248 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128867248 is a wasteful number, since it uses less digits than its factorization.

128867248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259852 (or 259846 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 128867248 is about 11351.9711063762. The cubic root of 128867248 is about 505.1040507096.

The spelling of 128867248 in words is "one hundred twenty-eight million, eight hundred sixty-seven thousand, two hundred forty-eight".