40234232140 has 24 divisors (see below), whose sum is σ = 85010249520. Its totient is φ = 15994957248.

The previous prime is 40234232113. The next prime is 40234232141. The reversal of 40234232140 is 4123243204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40234232141) 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, 6167635 + ... + 6174154.

It is an arithmetic number, because the mean of its divisors is an integer number (3542093730).

Almost surely, 2^40234232140 is an apocalyptic number.

It is an amenable number.

40234232140 is an abundant number, since it is smaller than the sum of its proper divisors (44776017380).

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

40234232140 is a wasteful number, since it uses less digits than its factorization.

40234232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12341961 (or 12341959 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40234232140 its reverse (4123243204), we get a palindrome (44357475344).

The spelling of 40234232140 in words is "forty billion, two hundred thirty-four million, two hundred thirty-two thousand, one hundred forty".