40871949 has 8 divisors (see below), whose sum is σ = 54698112. Its totient is φ = 27146880.

The previous prime is 40871947. The next prime is 40871953. The reversal of 40871949 is 94917804.

40871949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40871949 - 2¹ = 40871947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40871949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871947) 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 7 ways as a sum of consecutive naturals, for example, 24324 + ... + 25949.

It is an arithmetic number, because the mean of its divisors is an integer number (6837264).

Almost surely, 2^40871949 is an apocalyptic number.

It is an amenable number.

40871949 is a deficient number, since it is larger than the sum of its proper divisors (13826163).

40871949 is a wasteful number, since it uses less digits than its factorization.

40871949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50547.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 40871949 is about 6393.1173147378. The cubic root of 40871949 is about 344.4623678229.

The spelling of 40871949 in words is "forty million, eight hundred seventy-one thousand, nine hundred forty-nine".