40015222 has 16 divisors (see below), whose sum is σ = 64752912. Its totient is φ = 18436320.

The previous prime is 40015219. The next prime is 40015247. The reversal of 40015222 is 22251004.

40015222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40015196 and 40015205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20572 + ... + 22432.

It is an arithmetic number, because the mean of its divisors is an integer number (4047057).

Almost surely, 2^40015222 is an apocalyptic number.

40015222 is a deficient number, since it is larger than the sum of its proper divisors (24737690).

40015222 is a wasteful number, since it uses less digits than its factorization.

40015222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40015222 is about 6325.7586106332. The cubic root of 40015222 is about 342.0385659233.

Adding to 40015222 its reverse (22251004), we get a palindrome (62266226).

The spelling of 40015222 in words is "forty million, fifteen thousand, two hundred twenty-two".