289532238724 has 9 divisors (see below), whose sum is σ = 506683301061. Its totient is φ = 144765581280.

The previous prime is 289532238649. The next prime is 289532238757. The reversal of 289532238724 is 427832235982.

The square root of 289532238724 is 538082.

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., 7953429124 + 281578809600 = 89182^2 + 530640^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 941644 + ... + 1210684.

Almost surely, 2^289532238724 is an apocalyptic number.

289532238724 is the 538082-nd square number.

It is an amenable number.

289532238724 is a deficient number, since it is larger than the sum of its proper divisors (217151062337).

289532238724 is an frugal number, since it uses more digits than its factorization.

289532238724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538086 (or 269043 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 55.

The spelling of 289532238724 in words is "two hundred eighty-nine billion, five hundred thirty-two million, two hundred thirty-eight thousand, seven hundred twenty-four".