40443471 has 12 divisors (see below), whose sum is σ = 59021872. Its totient is φ = 26683776.

The previous prime is 40443467. The next prime is 40443523. The reversal of 40443471 is 17434404.

It is not a de Polignac number, because 40443471 - 2² = 40443467 is a prime.

It is a super-3 number, since 3×40443471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22291 + ... + 24036.

Almost surely, 2^40443471 is an apocalyptic number.

40443471 is a deficient number, since it is larger than the sum of its proper divisors (18578401).

40443471 is a wasteful number, since it uses less digits than its factorization.

40443471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46430 (or 46427 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 40443471 is about 6359.5181421237. The cubic root of 40443471 is about 343.2544217006.

Adding to 40443471 its reverse (17434404), we get a palindrome (57877875).

The spelling of 40443471 in words is "forty million, four hundred forty-three thousand, four hundred seventy-one".