2043406501440 has 56 divisors (see below), whose sum is σ = 6487815645120. Its totient is φ = 544908400128.

The previous prime is 2043406501427. The next prime is 2043406501481. The reversal of 2043406501440 is 441056043402.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1064273260 + ... + 1064275179.

Almost surely, 2^{2043406501440} is an apocalyptic number.

2043406501440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043406501440 is an abundant number, since it is smaller than the sum of its proper divisors (4444409143680).

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

2043406501440 is a wasteful number, since it uses less digits than its factorization.

2043406501440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128548459 (or 2128548449 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 2043406501440 in words is "two trillion, forty-three billion, four hundred six million, five hundred one thousand, four hundred forty".