128352276 has 120 divisors (see below), whose sum is σ = 373384704. Its totient is φ = 38180160.

The previous prime is 128352269. The next prime is 128352299. The reversal of 128352276 is 672253821.

128352276 is a `hidden beast` number, since 128 + 3 + 522 + 7 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128352276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 130081 + ... + 131063.

Almost surely, 2^128352276 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 128352276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186692352).

128352276 is an abundant number, since it is smaller than the sum of its proper divisors (245032428).

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

128352276 is a wasteful number, since it uses less digits than its factorization.

128352276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1032 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 128352276 is about 11329.2663487094. The cubic root of 128352276 is about 504.4303297464.

The spelling of 128352276 in words is "one hundred twenty-eight million, three hundred fifty-two thousand, two hundred seventy-six".