40815105 has 8 divisors (see below), whose sum is σ = 65304192. Its totient is φ = 21768048.

The previous prime is 40815091. The next prime is 40815121. The reversal of 40815105 is 50151804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40815105 - 2¹¹ = 40813057 is a prime.

It is a super-2 number, since 2×40815105² = 3331745592322050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360489 + ... + 1360518.

It is an arithmetic number, because the mean of its divisors is an integer number (8163024).

Almost surely, 2^40815105 is an apocalyptic number.

It is an amenable number.

40815105 is a deficient number, since it is larger than the sum of its proper divisors (24489087).

40815105 is a wasteful number, since it uses less digits than its factorization.

40815105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2721015.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 40815105 is about 6388.6700493921. The cubic root of 40815105 is about 344.3026029654.

Adding to 40815105 its reverse (50151804), we get a palindrome (90966909).

The spelling of 40815105 in words is "forty million, eight hundred fifteen thousand, one hundred five".