40115822 has 16 divisors (see below), whose sum is σ = 61133280. Its totient is φ = 19740672.

The previous prime is 40115819. The next prime is 40115833. The reversal of 40115822 is 22851104.

40115822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 39254 + ... + 40262.

It is an arithmetic number, because the mean of its divisors is an integer number (3820830).

Almost surely, 2^40115822 is an apocalyptic number.

40115822 is a deficient number, since it is larger than the sum of its proper divisors (21017458).

40115822 is a wasteful number, since it uses less digits than its factorization.

40115822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 40115822 is about 6333.7052346948. The cubic root of 40115822 is about 342.3249593082.

Adding to 40115822 its reverse (22851104), we get a palindrome (62966926).

The spelling of 40115822 in words is "forty million, one hundred fifteen thousand, eight hundred twenty-two".