4040224 has 12 divisors (see below), whose sum is σ = 7954254. Its totient is φ = 2020096.

The previous prime is 4040219. The next prime is 4040227. The reversal of 4040224 is 4220404.

It can be written as a sum of positive squares in only one way, i.e., 2999824 + 1040400 = 1732^2 + 1020^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 4040198 and 4040207.

It is not an unprimeable number, because it can be changed into a prime (4040227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63097 + ... + 63160.

Almost surely, 2^4040224 is an apocalyptic number.

It is an amenable number.

4040224 is a deficient number, since it is larger than the sum of its proper divisors (3914030).

4040224 is a wasteful number, since it uses less digits than its factorization.

4040224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126267 (or 126259 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4040224 is about 2010.0308455345. The cubic root of 4040224 is about 159.2704283389.

Adding to 4040224 its reverse (4220404), we get a palindrome (8260628).

The spelling of 4040224 in words is "four million, forty thousand, two hundred twenty-four".