128452000 has 96 divisors (see below), whose sum is σ = 334348560. Its totient is φ = 48332800.

The previous prime is 128451977. The next prime is 128452013. The reversal of 128452000 is 254821.

It can be written as a sum of positive squares in 8 ways, for example, as 12588304 + 115863696 = 3548^2 + 10764^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67056 + ... + 68944.

Almost surely, 2^128452000 is an apocalyptic number.

128452000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167174280).

128452000 is an abundant number, since it is smaller than the sum of its proper divisors (205896560).

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

128452000 is a wasteful number, since it uses less digits than its factorization.

128452000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1913 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 128452000 is about 11333.6666617649. Note that the first 5 decimals coincide. The cubic root of 128452000 is about 504.5609358913.

The spelling of 128452000 in words is "one hundred twenty-eight million, four hundred fifty-two thousand".