289248040 has 16 divisors (see below), whose sum is σ = 650808180. Its totient is φ = 115699200.

The previous prime is 289248017. The next prime is 289248053. The reversal of 289248040 is 40842982.

289248040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 275095396 + 14152644 = 16586^2 + 3762^2 .

It is a zygodrome in base 6.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3615561 + ... + 3615640.

Almost surely, 2^289248040 is an apocalyptic number.

289248040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289248040 is an abundant number, since it is smaller than the sum of its proper divisors (361560140).

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

289248040 is a wasteful number, since it uses less digits than its factorization.

289248040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231212 (or 7231208 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 289248040 is about 17007.2937294562. The cubic root of 289248040 is about 661.3379958247.

The spelling of 289248040 in words is "two hundred eighty-nine million, two hundred forty-eight thousand, forty".