40015322443 has 16 divisors (see below), whose sum is σ = 41429606400. Its totient is φ = 38608970400.

The previous prime is 40015322441. The next prime is 40015322509. The reversal of 40015322443 is 34422351004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40015322443 - 2¹ = 40015322441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40015322441) 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 15 ways as a sum of consecutive naturals, for example, 20530233 + ... + 20532181.

It is an arithmetic number, because the mean of its divisors is an integer number (2589350400).

Almost surely, 2^40015322443 is an apocalyptic number.

40015322443 is a deficient number, since it is larger than the sum of its proper divisors (1414283957).

40015322443 is a wasteful number, since it uses less digits than its factorization.

40015322443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 40015322443 its reverse (34422351004), we get a palindrome (74437673447).

The spelling of 40015322443 in words is "forty billion, fifteen million, three hundred twenty-two thousand, four hundred forty-three".