40304143431 has 16 divisors (see below), whose sum is σ = 59876179200. Its totient is φ = 26794577304.

The previous prime is 40304143409. The next prime is 40304143441. The reversal of 40304143431 is 13434140304.

40304143431 is a `hidden beast` number, since 4 + 0 + 304 + 14 + 343 + 1 = 666.

It is not a de Polignac number, because 40304143431 - 2¹³ = 40304135239 is a prime.

It is a super-2 number, since 2×40304143431² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40304143395 and 40304143404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304143441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2069341 + ... + 2088726.

It is an arithmetic number, because the mean of its divisors is an integer number (3742261200).

Almost surely, 2^40304143431 is an apocalyptic number.

40304143431 is a deficient number, since it is larger than the sum of its proper divisors (19572035769).

40304143431 is a wasteful number, since it uses less digits than its factorization.

40304143431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158435 (or 4158429 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40304143431 its reverse (13434140304), we get a palindrome (53738283735).

The spelling of 40304143431 in words is "forty billion, three hundred four million, one hundred forty-three thousand, four hundred thirty-one".