40671443 has 4 divisors (see below), whose sum is σ = 40710768. Its totient is φ = 40632120.

The previous prime is 40671437. The next prime is 40671451. The reversal of 40671443 is 34417604.

40671443 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.

It is a cyclic number.

It is not a de Polignac number, because 40671443 - 2²² = 36477139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40671493) 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, 18068 + ... + 20193.

It is an arithmetic number, because the mean of its divisors is an integer number (10177692).

Almost surely, 2^40671443 is an apocalyptic number.

40671443 is a deficient number, since it is larger than the sum of its proper divisors (39325).

40671443 is a wasteful number, since it uses less digits than its factorization.

40671443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39324.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40671443 is about 6377.4166399883. The cubic root of 40671443 is about 343.8981665178.

It can be divided in two parts, 40671 and 443, that added together give a palindrome (41114).

The spelling of 40671443 in words is "forty million, six hundred seventy-one thousand, four hundred forty-three".