1742728516 has 9 divisors (see below), whose sum is σ = 3049921021. Its totient is φ = 871322512.

The previous prime is 1742728513. The next prime is 1742728517. The reversal of 1742728516 is 6158272471.

The square root of 1742728516 is 41746.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 565964100 + 1176764416 = 23790^2 + 34304^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1742728513) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 73056 + ... + 93928.

Almost surely, 2^1742728516 is an apocalyptic number.

1742728516 is the 41746-th square number.

It is an amenable number.

1742728516 is a deficient number, since it is larger than the sum of its proper divisors (1307192505).

1742728516 is an frugal number, since it uses more digits than its factorization.

1742728516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41750 (or 20875 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The cubic root of 1742728516 is about 1203.3997377603.

The spelling of 1742728516 in words is "one billion, seven hundred forty-two million, seven hundred twenty-eight thousand, five hundred sixteen".