4288820 has 24 divisors (see below), whose sum is σ = 9217824. Its totient is φ = 1675296.

The previous prime is 4288807. The next prime is 4288847. The reversal of 4288820 is 288824.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1634 + ... + 3353.

It is an arithmetic number, because the mean of its divisors is an integer number (384076).

Almost surely, 2^4288820 is an apocalyptic number.

It is an amenable number.

4288820 is an abundant number, since it is smaller than the sum of its proper divisors (4929004).

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

4288820 is a wasteful number, since it uses less digits than its factorization.

4288820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039 (or 5037 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 4288820 is about 2070.9466434459. The cubic root of 4288820 is about 162.4722792951.

The spelling of 4288820 in words is "four million, two hundred eighty-eight thousand, eight hundred twenty".