4220824 has 8 divisors (see below), whose sum is σ = 7914060. Its totient is φ = 2110408.

The previous prime is 4220819. The next prime is 4220851. The reversal of 4220824 is 4280224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 4220795 and 4220804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263794 + ... + 263809.

Almost surely, 2^4220824 is an apocalyptic number.

It is an amenable number.

4220824 is a deficient number, since it is larger than the sum of its proper divisors (3693236).

4220824 is a wasteful number, since it uses less digits than its factorization.

4220824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527609 (or 527605 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 4220824 is about 2054.4644070901. The cubic root of 4220824 is about 161.6090762147.

The spelling of 4220824 in words is "four million, two hundred twenty thousand, eight hundred twenty-four".