40321343542 has 8 divisors (see below), whose sum is σ = 60532378632. Its totient is φ = 20143884000.

The previous prime is 40321343533. The next prime is 40321343549. The reversal of 40321343542 is 24534312304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40321343549) 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 3 ways as a sum of consecutive naturals, for example, 8390884 + ... + 8395687.

It is an arithmetic number, because the mean of its divisors is an integer number (7566547329).

Almost surely, 2^40321343542 is an apocalyptic number.

40321343542 is a deficient number, since it is larger than the sum of its proper divisors (20211035090).

40321343542 is a wasteful number, since it uses less digits than its factorization.

40321343542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16787774.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 40321343542 its reverse (24534312304), we get a palindrome (64855655846).

The spelling of 40321343542 in words is "forty billion, three hundred twenty-one million, three hundred forty-three thousand, five hundred forty-two".