2440403661040 has 80 divisors (see below), whose sum is σ = 5702165886240. Its totient is φ = 971314744320.

The previous prime is 2440403661037. The next prime is 2440403661041. The reversal of 2440403661040 is 401663040442.

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 = 2440403660987 and 2440403661005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440403661041) 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, 16301730 + ... + 16450750.

It is an arithmetic number, because the mean of its divisors is an integer number (71277073578).

Almost surely, 2^{2440403661040} is an apocalyptic number.

2440403661040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440403661040 is an abundant number, since it is smaller than the sum of its proper divisors (3261762225200).

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

2440403661040 is a wasteful number, since it uses less digits than its factorization.

2440403661040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150050 (or 150044 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 2440403661040 in words is "two trillion, four hundred forty billion, four hundred three million, six hundred sixty-one thousand, forty".