40132471 has 4 divisors (see below), whose sum is σ = 40168432. Its totient is φ = 40096512.

The previous prime is 40132439. The next prime is 40132511. The reversal of 40132471 is 17423104.

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 40132471 - 2⁵ = 40132439 is a prime.

It is a super-3 number, since 3×40132471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40130471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16251 + ... + 18556.

It is an arithmetic number, because the mean of its divisors is an integer number (10042108).

Almost surely, 2^40132471 is an apocalyptic number.

40132471 is a deficient number, since it is larger than the sum of its proper divisors (35961).

40132471 is a wasteful number, since it uses less digits than its factorization.

40132471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35960.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 40132471 is about 6335.0194159134. The cubic root of 40132471 is about 342.3723103673.

Adding to 40132471 its reverse (17423104), we get a palindrome (57555575).

The spelling of 40132471 in words is "forty million, one hundred thirty-two thousand, four hundred seventy-one".