128042504 has 16 divisors (see below), whose sum is σ = 254202300. Its totient is φ = 60255232.

The previous prime is 128042503. The next prime is 128042507. The reversal of 128042504 is 405240821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103022500 + 25020004 = 10150^2 + 5002^2 .

It is not an unprimeable number, because it can be changed into a prime (128042503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470609 + ... + 470880.

Almost surely, 2^128042504 is an apocalyptic number.

It is an amenable number.

128042504 is a deficient number, since it is larger than the sum of its proper divisors (126159796).

128042504 is a wasteful number, since it uses less digits than its factorization.

128042504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941512 (or 941508 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 128042504 is about 11315.5867722359. The cubic root of 128042504 is about 504.0241967891.

The spelling of 128042504 in words is "one hundred twenty-eight million, forty-two thousand, five hundred four".