40471243 has 4 divisors (see below), whose sum is σ = 41134768. Its totient is φ = 39807720.

The previous prime is 40471241. The next prime is 40471253. The reversal of 40471243 is 34217404.

40471243 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 40471243 - 2¹ = 40471241 is a prime.

It is a super-4 number, since 4×40471243⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40471241) 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, 331671 + ... + 331792.

It is an arithmetic number, because the mean of its divisors is an integer number (10283692).

Almost surely, 2^40471243 is an apocalyptic number.

40471243 is a deficient number, since it is larger than the sum of its proper divisors (663525).

40471243 is an equidigital number, since it uses as much as digits as its factorization.

40471243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663524.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40471243 is about 6361.7012661709. The cubic root of 40471243 is about 343.3329731566.

Adding to 40471243 its reverse (34217404), we get a palindrome (74688647).

The spelling of 40471243 in words is "forty million, four hundred seventy-one thousand, two hundred forty-three".