15728046 has 16 divisors (see below), whose sum is σ = 31746000. Its totient is φ = 5194368.

The previous prime is 15728039. The next prime is 15728047. The reversal of 15728046 is 64082751.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15727998 and 15728016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15728047) 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, 11371 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (1984125).

Almost surely, 2^15728046 is an apocalyptic number.

15728046 is an abundant number, since it is smaller than the sum of its proper divisors (16017954).

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

15728046 is a wasteful number, since it uses less digits than its factorization.

15728046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24163.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 15728046 is about 3965.8600580454. The cubic root of 15728046 is about 250.5483749269.

It can be divided in two parts, 157 and 28046, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 15728046 in words is "fifteen million, seven hundred twenty-eight thousand, forty-six".