2104340015440 has 160 divisors (see below), whose sum is σ = 5317593152256. Its totient is φ = 769831895040.

The previous prime is 2104340015419. The next prime is 2104340015441. The reversal of 2104340015440 is 445100434012.

It is a junction number, because it is equal to n+sod(n) for n = 2104340015399 and 2104340015408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104340015441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88135344 + ... + 88159216.

Almost surely, 2^{2104340015440} is an apocalyptic number.

2104340015440 is a gapful number since it is divisible by the number (20) 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 2104340015440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2658796576128).

2104340015440 is an abundant number, since it is smaller than the sum of its proper divisors (3213253136816).

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

2104340015440 is a wasteful number, since it uses less digits than its factorization.

2104340015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24677 (or 24671 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 2104340015440 its reverse (445100434012), we get a palindrome (2549440449452).

The spelling of 2104340015440 in words is "two trillion, one hundred four billion, three hundred forty million, fifteen thousand, four hundred forty".