4128542 has 8 divisors (see below), whose sum is σ = 6755832. Its totient is φ = 1876600.

The previous prime is 4128539. The next prime is 4128547. The reversal of 4128542 is 2458214.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93809 + ... + 93852.

It is an arithmetic number, because the mean of its divisors is an integer number (844479).

Almost surely, 2^4128542 is an apocalyptic number.

4128542 is a deficient number, since it is larger than the sum of its proper divisors (2627290).

4128542 is a wasteful number, since it uses less digits than its factorization.

4128542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187674.

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

The square root of 4128542 is about 2031.8813941763. The cubic root of 4128542 is about 160.4226067477.

The spelling of 4128542 in words is "four million, one hundred twenty-eight thousand, five hundred forty-two".