40543505 has 16 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 31025280.

The previous prime is 40543471. The next prime is 40543507. The reversal of 40543505 is 50534504.

It is not a de Polignac number, because 40543505 - 2⁶ = 40543441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40543507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12326 + ... + 15264.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^40543505 is an apocalyptic number.

It is an amenable number.

40543505 is a deficient number, since it is larger than the sum of its proper divisors (10259695).

40543505 is a wasteful number, since it uses less digits than its factorization.

40543505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 40543505 is about 6367.3781888624. The cubic root of 40543505 is about 343.5371936840.

Subtracting 40543505 from its reverse (50534504), we obtain a palindrome (9990999).

The spelling of 40543505 in words is "forty million, five hundred forty-three thousand, five hundred five".