40232340018 has 24 divisors (see below), whose sum is σ = 93875460588. Its totient is φ = 12379181472.

The previous prime is 40232340011. The next prime is 40232340019. The reversal of 40232340018 is 81004323204.

It can be written as a sum of positive squares in 2 ways, for example, as 39957211449 + 275128569 = 199893^2 + 16587^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40232339973 and 40232340000.

It is not an unprimeable number, because it can be changed into a prime (40232340011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85966305 + ... + 85966772.

Almost surely, 2^40232340018 is an apocalyptic number.

40232340018 is an abundant number, since it is smaller than the sum of its proper divisors (53643120570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40232340018 is a wasteful number, since it uses less digits than its factorization.

40232340018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171933098 (or 171933095 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 40232340018 in words is "forty billion, two hundred thirty-two million, three hundred forty thousand, eighteen".