40204222 has 4 divisors (see below), whose sum is σ = 60306336. Its totient is φ = 20102110.

The previous prime is 40204189. The next prime is 40204243. The reversal of 40204222 is 22240204.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×40204222³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40204196 and 40204205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051054 + ... + 10051057.

It is an arithmetic number, because the mean of its divisors is an integer number (15076584).

Almost surely, 2^40204222 is an apocalyptic number.

40204222 is a deficient number, since it is larger than the sum of its proper divisors (20102114).

40204222 is a wasteful number, since it uses less digits than its factorization.

40204222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20102113.

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

The square root of 40204222 is about 6340.6799319947. The cubic root of 40204222 is about 342.5762261299.

Adding to 40204222 its reverse (22240204), we get a palindrome (62444426).

The spelling of 40204222 in words is "forty million, two hundred four thousand, two hundred twenty-two".