40340222 has 16 divisors (see below), whose sum is σ = 65454480. Its totient is φ = 18535872.

The previous prime is 40340221. The next prime is 40340239. The reversal of 40340222 is 22204304.

It is a super-2 number, since 2×40340222² = 3254667022018568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40340222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340221) 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, 2729 + ... + 9387.

It is an arithmetic number, because the mean of its divisors is an integer number (4090905).

Almost surely, 2^40340222 is an apocalyptic number.

40340222 is a deficient number, since it is larger than the sum of its proper divisors (25114258).

40340222 is a wasteful number, since it uses less digits than its factorization.

40340222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40340222 is about 6351.3952797791. The cubic root of 40340222 is about 342.9620722653.

Adding to 40340222 its reverse (22204304), we get a palindrome (62544526).

The spelling of 40340222 in words is "forty million, three hundred forty thousand, two hundred twenty-two".