40244224 has 22 divisors (see below), whose sum is σ = 80451194. Its totient is φ = 20121600.

The previous prime is 40244209. The next prime is 40244249. The reversal of 40244224 is 42244204.

It can be written as a sum of positive squares in only one way, i.e., 31002624 + 9241600 = 5568^2 + 3040^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40244195 and 40244204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18627 + ... + 20674.

Almost surely, 2^40244224 is an apocalyptic number.

It is an amenable number.

40244224 is a deficient number, since it is larger than the sum of its proper divisors (40206970).

40244224 is an equidigital number, since it uses as much as digits as its factorization.

40244224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39321 (or 39303 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 40244224 is about 6343.8335413218. The cubic root of 40244224 is about 342.6898061727.

Adding to 40244224 its reverse (42244204), we get a palindrome (82488428).

The spelling of 40244224 in words is "forty million, two hundred forty-four thousand, two hundred twenty-four".