4289540 has 24 divisors (see below), whose sum is σ = 9078720. Its totient is φ = 1702368.

The previous prime is 4289539. The next prime is 4289599. The reversal of 4289540 is 459824.

4289540 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4289497 and 4289506.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2009 + ... + 3551.

It is an arithmetic number, because the mean of its divisors is an integer number (378280).

Almost surely, 2^4289540 is an apocalyptic number.

It is an amenable number.

4289540 is an abundant number, since it is smaller than the sum of its proper divisors (4789180).

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

4289540 is a wasteful number, since it uses less digits than its factorization.

4289540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 4289540 is about 2071.1204696975. The cubic root of 4289540 is about 162.4813706454.

The spelling of 4289540 in words is "four million, two hundred eighty-nine thousand, five hundred forty".