1827832021440 has 112 divisors (see below), whose sum is σ = 5811286185888. Its totient is φ = 486756716544.

The previous prime is 1827832021409. The next prime is 1827832021451. The reversal of 1827832021440 is 441202387281.

It is a junction number, because it is equal to n+sod(n) for n = 1827832021392 and 1827832021401.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 595087 + ... + 2002446.

Almost surely, 2^{1827832021440} is an apocalyptic number.

1827832021440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1827832021440 is an abundant number, since it is smaller than the sum of its proper divisors (3983454164448).

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

1827832021440 is a wasteful number, since it uses less digits than its factorization.

1827832021440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598286 (or 2598276 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 1827832021440 in words is "one trillion, eight hundred twenty-seven billion, eight hundred thirty-two million, twenty-one thousand, four hundred forty".