128974848 has 84 divisors (see below), whose sum is σ = 352321368. Its totient is φ = 41943040.

The previous prime is 128974841. The next prime is 128974877. The reversal of 128974848 is 848479821.

It is a super-2 number, since 2×128974848² = 33269022833246208, which contains 22 as substring.

Its product of digits (1032192) is a multiple of the sum of its prime factors (84).

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 128974848.

It is not an unprimeable number, because it can be changed into a prime (128974841) 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, 3145708 + ... + 3145748.

It is an arithmetic number, because the mean of its divisors is an integer number (4194302).

Almost surely, 2^128974848 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 128974848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176160684).

128974848 is an abundant number, since it is smaller than the sum of its proper divisors (223346520).

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

128974848 is an frugal number, since it uses more digits than its factorization.

128974848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 46 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 51.

The square root of 128974848 is about 11356.7093825632. The cubic root of 128974848 is about 505.2445934700.

The spelling of 128974848 in words is "one hundred twenty-eight million, nine hundred seventy-four thousand, eight hundred forty-eight".