2087403840 has 336 divisors, whose sum is σ = 7769473920. Its totient is φ = 512593920.

The previous prime is 2087403833. The next prime is 2087403841. The reversal of 2087403840 is 483047802.

2087403840 is a `hidden beast` number, since 208 + 7 + 403 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2087403795 and 2087403804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087403841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2024125 + ... + 2025155.

Almost surely, 2^2087403840 is an apocalyptic number.

2087403840 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 2087403840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3884736960).

2087403840 is an abundant number, since it is smaller than the sum of its proper divisors (5682070080).

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

2087403840 is a wasteful number, since it uses less digits than its factorization.

2087403840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 2087403840 is about 45688.1148659036. The cubic root of 2087403840 is about 1278.0136508788.

The spelling of 2087403840 in words is "two billion, eighty-seven million, four hundred three thousand, eight hundred forty".