40311244112440 has 128 divisors (see below), whose sum is σ = 106464147903360. Its totient is φ = 13446812104704.

The previous prime is 40311244112413. The next prime is 40311244112471. The reversal of 40311244112440 is 4421144211304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247450054 + ... + 247612906.

It is an arithmetic number, because the mean of its divisors is an integer number (831751155495).

Almost surely, 2^{40311244112440} is an apocalyptic number.

40311244112440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40311244112440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53232073951680).

40311244112440 is an abundant number, since it is smaller than the sum of its proper divisors (66152903790920).

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

40311244112440 is a wasteful number, since it uses less digits than its factorization.

40311244112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186801 (or 186797 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 40311244112440 its reverse (4421144211304), we get a palindrome (44732388323744).

The spelling of 40311244112440 in words is "forty trillion, three hundred eleven billion, two hundred forty-four million, one hundred twelve thousand, four hundred forty".