2087043440 has 20 divisors (see below), whose sum is σ = 4852376184. Its totient is φ = 834817344.

The previous prime is 2087043419. The next prime is 2087043461. The reversal of 2087043440 is 443407802.

It is an interprime number because it is at equal distance from previous prime (2087043419) and next prime (2087043461).

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 2087043397 and 2087043406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13043942 + ... + 13044101.

Almost surely, 2^2087043440 is an apocalyptic number.

2087043440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2087043440 is an abundant number, since it is smaller than the sum of its proper divisors (2765332744).

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

2087043440 is a wasteful number, since it uses less digits than its factorization.

2087043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26088056 (or 26088050 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 2087043440 is about 45684.1705626796. The cubic root of 2087043440 is about 1277.9400949746.

The spelling of 2087043440 in words is "two billion, eighty-seven million, forty-three thousand, four hundred forty".