40224222 has 16 divisors (see below), whose sum is σ = 89387280. Its totient is φ = 13408056.

The previous prime is 40224211. The next prime is 40224229. The reversal of 40224222 is 22242204.

40224222 is a `hidden beast` number, since 402 + 242 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40224195 and 40224204.

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 7 ways as a sum of consecutive naturals, for example, 372393 + ... + 372500.

It is an arithmetic number, because the mean of its divisors is an integer number (5586705).

Almost surely, 2^40224222 is an apocalyptic number.

40224222 is an abundant number, since it is smaller than the sum of its proper divisors (49163058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40224222 is a wasteful number, since it uses less digits than its factorization.

40224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744904 (or 744898 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 40224222 is about 6342.2568538337. The cubic root of 40224222 is about 342.6330227247.

Adding to 40224222 its reverse (22242204), we get a palindrome (62466426).

The spelling of 40224222 in words is "forty million, two hundred twenty-four thousand, two hundred twenty-two".