40041131440 has 40 divisors (see below), whose sum is σ = 93105880128. Its totient is φ = 16014689280.

The previous prime is 40041131423. The next prime is 40041131443. The reversal of 40041131440 is 4413114004.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (40041131443) 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, 895864 + ... + 939496.

Almost surely, 2^40041131440 is an apocalyptic number.

40041131440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40041131440 is an abundant number, since it is smaller than the sum of its proper divisors (53064748688).

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

40041131440 is a wasteful number, since it uses less digits than its factorization.

40041131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55117 (or 55111 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 40041131440 its reverse (4413114004), we get a palindrome (44454245444).

The spelling of 40041131440 in words is "forty billion, forty-one million, one hundred thirty-one thousand, four hundred forty".