4228945 has 24 divisors (see below), whose sum is σ = 6061608. Its totient is φ = 2822400.

The previous prime is 4228907. The next prime is 4228951. The reversal of 4228945 is 5498224.

It can be written as a sum of positive squares in 4 ways, for example, as 414736 + 3814209 = 644^2 + 1953^2 .

It is not a de Polignac number, because 4228945 - 2¹⁵ = 4196177 is a prime.

4228945 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4228945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9835 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (252567).

Almost surely, 2^4228945 is an apocalyptic number.

It is an amenable number.

4228945 is a deficient number, since it is larger than the sum of its proper divisors (1832663).

4228945 is a wasteful number, since it uses less digits than its factorization.

4228945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 474 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 4228945 is about 2056.4398848495. The cubic root of 4228945 is about 161.7126568180.

The spelling of 4228945 in words is "four million, two hundred twenty-eight thousand, nine hundred forty-five".