289540772 has 18 divisors (see below), whose sum is σ = 534770838. Its totient is φ = 137150208.

The previous prime is 289540751. The next prime is 289540777. The reversal of 289540772 is 277045982.

It can be written as a sum of positive squares in only one way, i.e., 211818916 + 77721856 = 14554^2 + 8816^2 .

It is not an unprimeable number, because it can be changed into a prime (289540777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98813 + ... + 101700.

It is an arithmetic number, because the mean of its divisors is an integer number (29709491).

Almost surely, 2^289540772 is an apocalyptic number.

It is an amenable number.

289540772 is a deficient number, since it is larger than the sum of its proper divisors (245230066).

289540772 is a wasteful number, since it uses less digits than its factorization.

289540772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200555 (or 200534 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 289540772 is about 17015.8976254560. The cubic root of 289540772 is about 661.5610218499.

The spelling of 289540772 in words is "two hundred eighty-nine million, five hundred forty thousand, seven hundred seventy-two".