40260505 has 16 divisors (see below), whose sum is σ = 51352704. Its totient is φ = 30196480.

The previous prime is 40260503. The next prime is 40260547. The reversal of 40260505 is 50506204.

40260505 = 2002² + 2003² + ... + 2011².

40260505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40260505 - 2¹ = 40260503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40260503) 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 15 ways as a sum of consecutive naturals, for example, 25674 + ... + 27196.

It is an arithmetic number, because the mean of its divisors is an integer number (3209544).

Almost surely, 2^40260505 is an apocalyptic number.

It is an amenable number.

40260505 is a deficient number, since it is larger than the sum of its proper divisors (11092199).

40260505 is a wasteful number, since it uses less digits than its factorization.

40260505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 40260505 is about 6345.1166261937. The cubic root of 40260505 is about 342.7360122281.

Adding to 40260505 its reverse (50506204), we get a palindrome (90766709).

The spelling of 40260505 in words is "forty million, two hundred sixty thousand, five hundred five".