40587493 has 4 divisors (see below), whose sum is σ = 40625920. Its totient is φ = 40549068.

The previous prime is 40587487. The next prime is 40587497. The reversal of 40587493 is 39478504.

40587493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40587493 - 2⁹ = 40586981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40587497) 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 3 ways as a sum of consecutive naturals, for example, 17583 + ... + 19756.

It is an arithmetic number, because the mean of its divisors is an integer number (10156480).

Almost surely, 2^40587493 is an apocalyptic number.

It is an amenable number.

40587493 is a deficient number, since it is larger than the sum of its proper divisors (38427).

40587493 is a wasteful number, since it uses less digits than its factorization.

40587493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38426.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 40587493 is about 6370.8314214080. The cubic root of 40587493 is about 343.6613899208.

The spelling of 40587493 in words is "forty million, five hundred eighty-seven thousand, four hundred ninety-three".