40341143440 has 80 divisors (see below), whose sum is σ = 101076405696. Its totient is φ = 14885107200.

The previous prime is 40341143399. The next prime is 40341143467. The reversal of 40341143440 is 4434114304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 40341143399 and 40341143408.

It is an unprimeable number.

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, 1621495 + ... + 1646185.

Almost surely, 2^40341143440 is an apocalyptic number.

40341143440 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 40341143440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50538202848).

40341143440 is an abundant number, since it is smaller than the sum of its proper divisors (60735262256).

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

40341143440 is a wasteful number, since it uses less digits than its factorization.

40341143440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26288 (or 26282 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40341143440 its reverse (4434114304), we get a palindrome (44775257744).

The spelling of 40341143440 in words is "forty billion, three hundred forty-one million, one hundred forty-three thousand, four hundred forty".