2124040232440 has 64 divisors (see below), whose sum is σ = 5462708405760. Its totient is φ = 728123610240.

The previous prime is 2124040232417. The next prime is 2124040232467. The reversal of 2124040232440 is 442320404212.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2124040232399 and 2124040232408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110205 + ... + 2341075.

It is an arithmetic number, because the mean of its divisors is an integer number (85354818840).

Almost surely, 2^{2124040232440} is an apocalyptic number.

2124040232440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124040232440 is an abundant number, since it is smaller than the sum of its proper divisors (3338668173320).

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

2124040232440 is a wasteful number, since it uses less digits than its factorization.

2124040232440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237052 (or 1237048 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 2124040232440 its reverse (442320404212), we get a palindrome (2566360636652).

The spelling of 2124040232440 in words is "two trillion, one hundred twenty-four billion, forty million, two hundred thirty-two thousand, four hundred forty".