40043232331 has 8 divisors (see below), whose sum is σ = 40219236464. Its totient is φ = 39867310080.

The previous prime is 40043232289. The next prime is 40043232353. The reversal of 40043232331 is 13323234004.

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 40043232331 - 2¹³ = 40043224139 is a prime.

It is a super-2 number, since 2×40043232331² (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 = 40043232296 and 40043232305.

It is not an unprimeable number, because it can be changed into a prime (40043232731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091275 + ... + 1127371.

It is an arithmetic number, because the mean of its divisors is an integer number (5027404558).

Almost surely, 2^40043232331 is an apocalyptic number.

40043232331 is a deficient number, since it is larger than the sum of its proper divisors (176004133).

40043232331 is a wasteful number, since it uses less digits than its factorization.

40043232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40941.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 40043232331 its reverse (13323234004), we get a palindrome (53366466335).

The spelling of 40043232331 in words is "forty billion, forty-three million, two hundred thirty-two thousand, three hundred thirty-one".