40242140031 has 16 divisors (see below), whose sum is σ = 54352524800. Its totient is φ = 26481385728.

The previous prime is 40242140027. The next prime is 40242140039. The reversal of 40242140031 is 13004124204.

It is not a de Polignac number, because 40242140031 - 2² = 40242140027 is a prime.

It is a super-2 number, since 2×40242140031² (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 (40242140039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72151 + ... + 292728.

It is an arithmetic number, because the mean of its divisors is an integer number (3397032800).

Almost surely, 2^40242140031 is an apocalyptic number.

40242140031 is a deficient number, since it is larger than the sum of its proper divisors (14110384769).

40242140031 is a wasteful number, since it uses less digits than its factorization.

40242140031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365358.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40242140031 its reverse (13004124204), we get a palindrome (53246264235).

The spelling of 40242140031 in words is "forty billion, two hundred forty-two million, one hundred forty thousand, thirty-one".