15728342 has 16 divisors (see below), whose sum is σ = 27107232. Its totient is φ = 6704640.

The previous prime is 15728341. The next prime is 15728369. The reversal of 15728342 is 24382751.

It is a junction number, because it is equal to n+sod(n) for n = 15728299 and 15728308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15728341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209 + ... + 5612.

It is an arithmetic number, because the mean of its divisors is an integer number (1694202).

Almost surely, 2^15728342 is an apocalyptic number.

15728342 is a deficient number, since it is larger than the sum of its proper divisors (11378890).

15728342 is a wasteful number, since it uses less digits than its factorization.

15728342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023.

The product of its digits is 13440, while the sum is 32.

The square root of 15728342 is about 3965.8973763828. The cubic root of 15728342 is about 250.5499466809.

The spelling of 15728342 in words is "fifteen million, seven hundred twenty-eight thousand, three hundred forty-two".