40224224 has 24 divisors (see below), whose sum is σ = 79334640. Its totient is φ = 20075776.

The previous prime is 40224211. The next prime is 40224229. The reversal of 40224224 is 42242204.

It is a junction number, because it is equal to n+sod(n) for n = 40224196 and 40224205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40224229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29837 + ... + 31155.

It is an arithmetic number, because the mean of its divisors is an integer number (3305610).

Almost surely, 2^40224224 is an apocalyptic number.

It is an amenable number.

40224224 is a deficient number, since it is larger than the sum of its proper divisors (39110416).

40224224 is a wasteful number, since it uses less digits than its factorization.

40224224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40224224 is about 6342.2570115062. The cubic root of 40224224 is about 342.6330284034.

Adding to 40224224 its reverse (42242204), we get a palindrome (82466428).

The spelling of 40224224 in words is "forty million, two hundred twenty-four thousand, two hundred twenty-four".