289157328 has 60 divisors (see below), whose sum is σ = 810939168. Its totient is φ = 96183360.

The previous prime is 289157317. The next prime is 289157329. The reversal of 289157328 is 823751982.

It is a happy number.

It is a super-2 number, since 2×289157328² = 167223920672199168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289157329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76933 + ... + 80603.

Almost surely, 2^289157328 is an apocalyptic number.

It is an amenable number.

289157328 is an abundant number, since it is smaller than the sum of its proper divisors (521781840).

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

289157328 is a wasteful number, since it uses less digits than its factorization.

289157328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232 (or 4223 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 289157328 is about 17004.6266645287. The cubic root of 289157328 is about 661.2688538238.

The spelling of 289157328 in words is "two hundred eighty-nine million, one hundred fifty-seven thousand, three hundred twenty-eight".