40026222 has 12 divisors (see below), whose sum is σ = 86723520. Its totient is φ = 13342068.

The previous prime is 40026221. The next prime is 40026227. The reversal of 40026222 is 22262004.

It is a happy number.

40026222 is a `hidden beast` number, since 40 + 0 + 2 + 622 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2223679 = 40026222 / (4 + 0 + 0 + 2 + 6 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 40026195 and 40026204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40026221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111822 + ... + 1111857.

It is an arithmetic number, because the mean of its divisors is an integer number (7226960).

Almost surely, 2^40026222 is an apocalyptic number.

40026222 is an abundant number, since it is smaller than the sum of its proper divisors (46697298).

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

40026222 is a wasteful number, since it uses less digits than its factorization.

40026222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223687 (or 2223684 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40026222 is about 6326.6280118243. The cubic root of 40026222 is about 342.0699046600.

Adding to 40026222 its reverse (22262004), we get a palindrome (62288226).

The spelling of 40026222 in words is "forty million, twenty-six thousand, two hundred twenty-two".