40440143324 has 48 divisors (see below), whose sum is σ = 85169145600. Its totient is φ = 16413134976.

The previous prime is 40440143243. The next prime is 40440143327. The reversal of 40440143324 is 42334104404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40440143327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566707 + ... + 1592309.

It is an arithmetic number, because the mean of its divisors is an integer number (1774357200).

Almost surely, 2^40440143324 is an apocalyptic number.

It is an amenable number.

40440143324 is an abundant number, since it is smaller than the sum of its proper divisors (44729002276).

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

40440143324 is a wasteful number, since it uses less digits than its factorization.

40440143324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28602 (or 28600 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 40440143324 its reverse (42334104404), we get a palindrome (82774247728).

The spelling of 40440143324 in words is "forty billion, four hundred forty million, one hundred forty-three thousand, three hundred twenty-four".