289932328 has 16 divisors (see below), whose sum is σ = 621283680. Its totient is φ = 124256688.

The previous prime is 289932323. The next prime is 289932337. The reversal of 289932328 is 823239982.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (289932323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2588626 + ... + 2588737.

It is an arithmetic number, because the mean of its divisors is an integer number (38830230).

Almost surely, 2^289932328 is an apocalyptic number.

289932328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

289932328 is an abundant number, since it is smaller than the sum of its proper divisors (331351352).

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

289932328 is a wasteful number, since it uses less digits than its factorization.

289932328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177376 (or 5177372 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 289932328 is about 17027.3993316654. The cubic root of 289932328 is about 661.8591048045.

The spelling of 289932328 in words is "two hundred eighty-nine million, nine hundred thirty-two thousand, three hundred twenty-eight".