40222115 has 4 divisors (see below), whose sum is σ = 48266544. Its totient is φ = 32177688.

The previous prime is 40222111. The next prime is 40222121. The reversal of 40222115 is 51122204.

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

It is a cyclic number.

It is not a de Polignac number, because 40222115 - 2² = 40222111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40222093 and 40222102.

It is not an unprimeable number, because it can be changed into a prime (40222111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022207 + ... + 4022216.

It is an arithmetic number, because the mean of its divisors is an integer number (12066636).

Almost surely, 2^40222115 is an apocalyptic number.

40222115 is a deficient number, since it is larger than the sum of its proper divisors (8044429).

40222115 is an equidigital number, since it uses as much as digits as its factorization.

40222115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044428.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40222115 is about 6342.0907435955. The cubic root of 40222115 is about 342.6270400908.

Adding to 40222115 its reverse (51122204), we get a palindrome (91344319).

The spelling of 40222115 in words is "forty million, two hundred twenty-two thousand, one hundred fifteen".