40868505 has 24 divisors (see below), whose sum is σ = 70990920. Its totient is φ = 21749760.

The previous prime is 40868497. The next prime is 40868537. The reversal of 40868505 is 50586804.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9865881 + 31002624 = 3141^2 + 5568^2 .

It is not a de Polignac number, because 40868505 - 2³ = 40868497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40868505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34015 + ... + 35195.

It is an arithmetic number, because the mean of its divisors is an integer number (2957955).

Almost surely, 2^40868505 is an apocalyptic number.

40868505 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40868505 is a deficient number, since it is larger than the sum of its proper divisors (30122415).

40868505 is a wasteful number, since it uses less digits than its factorization.

40868505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 40868505 is about 6392.8479568968. The cubic root of 40868505 is about 344.4526923874.

The spelling of 40868505 in words is "forty million, eight hundred sixty-eight thousand, five hundred five".