128544042 has 32 divisors (see below), whose sum is σ = 289511424. Its totient is φ = 37695600.

The previous prime is 128544023. The next prime is 128544047. The reversal of 128544042 is 240445821.

It is not an unprimeable number, because it can be changed into a prime (128544047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29368 + ... + 33459.

It is an arithmetic number, because the mean of its divisors is an integer number (9047232).

Almost surely, 2^128544042 is an apocalyptic number.

128544042 is an abundant number, since it is smaller than the sum of its proper divisors (160967382).

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

128544042 is a wasteful number, since it uses less digits than its factorization.

128544042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62874.

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 128544042 is about 11337.7264916737. The cubic root of 128544042 is about 504.6814211302.

Adding to 128544042 its reverse (240445821), we get a palindrome (368989863).

The spelling of 128544042 in words is "one hundred twenty-eight million, five hundred forty-four thousand, forty-two".