4287540 has 48 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 1082880.

The previous prime is 4287539. The next prime is 4287557. The reversal of 4287540 is 457824.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4287498 and 4287507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741 + ... + 3020.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

Almost surely, 2^4287540 is an apocalyptic number.

It is an amenable number.

4287540 is an abundant number, since it is smaller than the sum of its proper divisors (8352780).

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

4287540 is a wasteful number, since it uses less digits than its factorization.

4287540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792 (or 3790 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 4287540 is about 2070.6375829681. The cubic root of 4287540 is about 162.4561143818.

The spelling of 4287540 in words is "four million, two hundred eighty-seven thousand, five hundred forty".