40506105 has 32 divisors (see below), whose sum is σ = 68200704. Its totient is φ = 20489216.

The previous prime is 40506101. The next prime is 40506143. The reversal of 40506105 is 50160504.

It is a happy number.

40506105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40506105 - 2² = 40506101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40506101) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 46837 + ... + 47693.

It is an arithmetic number, because the mean of its divisors is an integer number (2131272).

Almost surely, 2^40506105 is an apocalyptic number.

It is an amenable number.

40506105 is a deficient number, since it is larger than the sum of its proper divisors (27694599).

40506105 is a wasteful number, since it uses less digits than its factorization.

40506105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 40506105 is about 6364.4406667043. The cubic root of 40506105 is about 343.4315274063.

Adding to 40506105 its reverse (50160504), we get a palindrome (90666609).

The spelling of 40506105 in words is "forty million, five hundred six thousand, one hundred five".