40242471 has 4 divisors (see below), whose sum is σ = 53656632. Its totient is φ = 26828312.

The previous prime is 40242469. The next prime is 40242497. The reversal of 40242471 is 17424204.

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 40242471 - 2¹ = 40242469 is a prime.

It is a super-3 number, since 3×40242471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242971) 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, 6707076 + ... + 6707081.

It is an arithmetic number, because the mean of its divisors is an integer number (13414158).

Almost surely, 2^40242471 is an apocalyptic number.

40242471 is a deficient number, since it is larger than the sum of its proper divisors (13414161).

40242471 is a wasteful number, since it uses less digits than its factorization.

40242471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13414160.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 40242471 is about 6343.6953741490. The cubic root of 40242471 is about 342.6848303535.

Adding to 40242471 its reverse (17424204), we get a palindrome (57666675).

The spelling of 40242471 in words is "forty million, two hundred forty-two thousand, four hundred seventy-one".