40443135312 has 40 divisors (see below), whose sum is σ = 105229757920. Its totient is φ = 13384056960.

The previous prime is 40443135287. The next prime is 40443135319. The reversal of 40443135312 is 21353134404.

It is a self number, because there is not a number n which added to its sum of digits gives 40443135312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443135319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024139 + ... + 3037482.

It is an arithmetic number, because the mean of its divisors is an integer number (2630743948).

Almost surely, 2^40443135312 is an apocalyptic number.

It is an amenable number.

40443135312 is an abundant number, since it is smaller than the sum of its proper divisors (64786622608).

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

40443135312 is a wasteful number, since it uses less digits than its factorization.

40443135312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061771 (or 6061765 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 40443135312 its reverse (21353134404), we get a palindrome (61796269716).

The spelling of 40443135312 in words is "forty billion, four hundred forty-three million, one hundred thirty-five thousand, three hundred twelve".