40052013431 has 4 divisors (see below), whose sum is σ = 40344364032. Its totient is φ = 39759662832.

The previous prime is 40052013427. The next prime is 40052013473. The reversal of 40052013431 is 13431025004.

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 40052013431 - 2² = 40052013427 is a prime.

It is a super-2 number, since 2×40052013431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40052013397 and 40052013406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40052013731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146175095 + ... + 146175368.

It is an arithmetic number, because the mean of its divisors is an integer number (10086091008).

Almost surely, 2^40052013431 is an apocalyptic number.

40052013431 is a deficient number, since it is larger than the sum of its proper divisors (292350601).

40052013431 is a wasteful number, since it uses less digits than its factorization.

40052013431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292350600.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40052013431 its reverse (13431025004), we get a palindrome (53483038435).

The spelling of 40052013431 in words is "forty billion, fifty-two million, thirteen thousand, four hundred thirty-one".