40140140431 has 8 divisors (see below), whose sum is σ = 41888506464. Its totient is φ = 38392036320.

The previous prime is 40140140389. The next prime is 40140140459. The reversal of 40140140431 is 13404104104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40140140431 - 2¹¹ = 40140138383 is a prime.

It is a super-2 number, since 2×40140140431² (a number of 22 digits) contains 22 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 (40140149431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288465 + ... + 404341.

It is an arithmetic number, because the mean of its divisors is an integer number (5236063308).

Almost surely, 2^40140140431 is an apocalyptic number.

40140140431 is a deficient number, since it is larger than the sum of its proper divisors (1748366033).

40140140431 is a wasteful number, since it uses less digits than its factorization.

40140140431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130961.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40140140431 its reverse (13404104104), we get a palindrome (53544244535).

The spelling of 40140140431 in words is "forty billion, one hundred forty million, one hundred forty thousand, four hundred thirty-one".