40540499 has 2 divisors, whose sum is σ = 40540500. Its totient is φ = 40540498.

The previous prime is 40540483. The next prime is 40540517. The reversal of 40540499 is 99404504.

40540499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40540499 - 2⁴ = 40540483 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40740499) 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 as a sum of consecutive naturals, namely, 20270249 + 20270250.

It is an arithmetic number, because the mean of its divisors is an integer number (20270250).

Almost surely, 2^40540499 is an apocalyptic number.

40540499 is a deficient number, since it is larger than the sum of its proper divisors (1).

40540499 is an equidigital number, since it uses as much as digits as its factorization.

40540499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 40540499 is about 6367.1421375685. The cubic root of 40540499 is about 343.5287032297.

It can be divided in two parts, 405 and 40499, that added together give a palindrome (40904).

The spelling of 40540499 in words is "forty million, five hundred forty thousand, four hundred ninety-nine".