128280354 has 16 divisors (see below), whose sum is σ = 257539392. Its totient is φ = 42597008.

The previous prime is 128280353. The next prime is 128280359. The reversal of 128280354 is 453082821.

It is not an unprimeable number, because it can be changed into a prime (128280353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39069 + ... + 42224.

It is an arithmetic number, because the mean of its divisors is an integer number (16096212).

Almost surely, 2^128280354 is an apocalyptic number.

128280354 is an abundant number, since it is smaller than the sum of its proper divisors (129259038).

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

128280354 is a wasteful number, since it uses less digits than its factorization.

128280354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81561.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 128280354 is about 11326.0917354576. The cubic root of 128280354 is about 504.3360932232.

The spelling of 128280354 in words is "one hundred twenty-eight million, two hundred eighty thousand, three hundred fifty-four".