40342222 has 16 divisors (see below), whose sum is σ = 63649152. Its totient is φ = 19150560.

The previous prime is 40342193. The next prime is 40342223. The reversal of 40342222 is 22224304.

It is a self number, because there is not a number n which added to its sum of digits gives 40342222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40342223) 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, 2853 + ... + 9424.

It is an arithmetic number, because the mean of its divisors is an integer number (3978072).

Almost surely, 2^40342222 is an apocalyptic number.

40342222 is a deficient number, since it is larger than the sum of its proper divisors (23306930).

40342222 is a wasteful number, since it uses less digits than its factorization.

40342222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12363.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40342222 is about 6351.5527235472. The cubic root of 40342222 is about 342.9677399982.

Adding to 40342222 its reverse (22224304), we get a palindrome (62566526).

The spelling of 40342222 in words is "forty million, three hundred forty-two thousand, two hundred twenty-two".