40224244 has 24 divisors (see below), whose sum is σ = 75946248. Its totient is φ = 18570240.

The previous prime is 40224229. The next prime is 40224257. The reversal of 40224244 is 44242204.

It can be written as a sum of positive squares in 4 ways, for example, as 4368100 + 35856144 = 2090^2 + 5988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (3164427).

Almost surely, 2^40224244 is an apocalyptic number.

It is an amenable number.

40224244 is a deficient number, since it is larger than the sum of its proper divisors (35722004).

40224244 is a wasteful number, since it uses less digits than its factorization.

40224244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11235 (or 11233 counting only the distinct ones).

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

The square root of 40224244 is about 6342.2585882318. The cubic root of 40224244 is about 342.6330851906.

Adding to 40224244 its reverse (44242204), we get a palindrome (84466448).

The spelling of 40224244 in words is "forty million, two hundred twenty-four thousand, two hundred forty-four".