4224285 has 64 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 1983744.

The previous prime is 4224281. The next prime is 4224317. The reversal of 4224285 is 5824224.

It is a happy number.

It is not a de Polignac number, because 4224285 - 2² = 4224281 is a prime.

It is a super-2 number, since 2×4224285² = 35689167522450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 4 + 2¹¹ + 2¹³ + 4² + 2²² + 8⁴ + 5⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4224281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50854 + ... + 50936.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

Almost surely, 2^4224285 is an apocalyptic number.

4224285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4224285 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

4224285 is a wasteful number, since it uses less digits than its factorization.

4224285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 4224285 is about 2055.3065464791. The cubic root of 4224285 is about 161.6532363284.

The spelling of 4224285 in words is "four million, two hundred twenty-four thousand, two hundred eighty-five".